Rifle Winchester classic M-70 375 Ackley Bullet Barnes .375 cal. 270 gn. TSX Powder Alliant RL-17 95 gns. MAX Primer Fed. 215GM Magnum COL 3.590 Vel. 3110 fps
Chrono results w/ RL-17 and 270 TSX
83 2728 85 2782 87 2820 89 2855....started using little Sagebrush drop tube 91 2940 92 2992....now were gettin' somewhere 93 3046....Damn! still no high pressure signs 94 3078....unreal 95 3110....I quit, how dead does it need to be
All loads fell from chamber in my rifle, absolutely no signs of excessive pressure.
Loaded three rounds @95 gns. and a COL of 3.590, shot from bags in a variable to nine mph wind out of the SSW, POA was dew North, group went 1.31, unreal accuracy and speed, it will be a sub" load in calm conditions
I believe this powder will be absolute dynamite w/ 300 gn bullets as well as the new .375 cal. 250 gn. TTSX's, The 250 gn. TTSX'x @3250...... how bout that for an elk/moose/big bear load?
prairie goat, sorry to start something then run off, but had to get some tubing and oxy/acet bottles refilled. Barrel length is 24", its a factory Winchester.
toad, you can see I started at H&H speeds and carefully worked on up to 375 Wby vels and beyond, the RL-17 powder has done this in a few other calibers as well, and at like pressure levels. I do not have a gauge, but in no way experienced any excessive pressure signs. Case expansion is the same as loads I've been shooting for years in this rifle. These speeds are certainly not necessary, but I had a feeling the 17 may be as good as the discontinued N-205 for the 375 AI.
And with it, I have safely and with long brass life ran the 300 gn NP's and SAF's to 2900 fps in this rifle.
Well, I do have a Rifle article from awhile back where the author reported 3000 fps with the 270 gr NPT and N205 from the 375AI....that in a rechambered M70 and a Rem 700.....
Not saying those loads are safe, but looks like we'll see how gunners brass does after 4-5 firings.
That's a lot of vel for a 270 gr bullet....
We chronographed a fair number of loads in the standard H&H this afternoon......270 gr buulets (Northfork and TSX) were topping out at about 2750-2800....gunners loads are a substantial increase.
I found R-17 got me to some reaally impresive numbers in a 358WIN as well. Impressive numbers, there. Have you measured the web area ahead of the belt or the primer pockets before and after? Agreed that a 270 TTSX is going to be a MAJOR LEAGUE big game killer.
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About 2016 team "R" candidates "We definitely need a crew with a sack of balls the size of hot water bottles, bloviated estrogen leaking feel-gooders need not apply." Gunner 500
Hello Bob, Yes just get a lb. of RL-17 and you can start at or below where I started today and work up at your own comfortable rate. I was pleasantly surprised at the vels. and accuracy from my AI today, though stated earlier by myself, these speeds are certainly not required, but it is still a train load of fun to pump the old girl up and make her work alittle
I would fire thru the chronograph, then peek up to see those TSX's slappin' the red bank out at 800 yds up in the pasture, they were still hittin' with about as much attitude as they were when they left my barrel
i get leanin' on a cartridge and do it myself at times. when it works it can work great.
two points:
if a rifle may get pressed into DG service, i go back to milder pressures to preclude extraction issues.
and when speeds go way over the norm, that throws up a red flag.
toad, I took that into account today, temp was 97 deg. at the conclusion of todays testing, not saying I will run these full throttle, but it goes to show what can happen, [thru careful load development] with the amazing new powders we have today
yea, i've been runnin' RE 17 in my .375 RUM for about a year now. i had QL run the powders and RE 17 came in near the top. it wasn't the absolute tops for speed but in the top 3 IIRC. but it was the top powder that i can get locally, so it's what i ran with.
i run RE 15/ 270 TSX in my .375 AI.
Guns don't kill people, drivers with cell phones kill people.
My 375 is having new mounts installed,but when it gets back,and after hunting season,I am going to work with R17 over the winter with it.
Like I stated previusly I have played with the AI version a bit,and am sticking to the standard H&H....but that does not mean I am not interested in what guys like you and toad are doing with the AI version,and the other blown out types like the Weatherby.
I found R-17 got me to some reaally impresive numbers in a 358WIN as well. Impressive numbers, there. Have you measured the web area ahead of the belt or the primer pockets before and after? Agreed that a 270 TTSX is going to be a MAJOR LEAGUE big game killer.
safariman, yes, I measured case head expansion just above the belt, and it is consistent with all measurements thus far on many loads I have ran thru this rifle.
And if You wanna get the little 200 gn. TTSX's movin' to an accurate and safe [in my rifle]get You some RL-7 and work up to an even 2700 fps, thats what I'm runnin' in a little hawkeys S/S in 358W.
Some VERY impressive numbers !!! Almost makes me wanna ditch work tomorrow to go buy a can of R-17 and hit the loading bench/range.
I have little bits of drool running from the corners of my 'stache wondering what the 26" tube on my .375 Bee might do with similar loads, should they work up to appear pressure-safe.
Just go on ahead and call in yoder I'm bettin' you'll have as much fun as I did today. I'm gonna shoot groups again in the morning to make sure it was fluke free And with that 26" tube i have no doubt you'll be there on the vels.
If you want, I would look real hard at the new 250 TTSX's and some RL-17, that may prove to be a long killer
Gunner
Gunner I have a pile of 250gr and 275 gr Bitterroots and they will be the focus of the RL17 work.I have mostly been using the 250 BBC for the last 25 years or so at 2900+.....but the 250TTSX sounds like a great bullet and based on a pals results with the 235TSX, I suspect the 250 will be a winner as well..I am going to try some of those,too.
If you want, I would look real hard at the new 250 TTSX's and some RL-17, that may prove to be a long killer
Gunner
Gunner I have a pile of 250gr and 275 gr Bitterroots and they will be the focus of the RL17 work.I have mostly been using the 250 BBC for the last 25 years or so at 2900+.....but the 250TTSX sounds like a great bullet and based on a pals results with the 235TSX, I suspect the 250 will be a winner as well..I am going to try some of those,too.
Your suggestion is a good one....
Gosh dang, I spect You know those old BBC's are like gold ...good hunting
toad, i used to run RL-15 with the old original Barnes X bullets in the 250 gn. weight for a tad over 2900 in an old Browning Safari Medallion H&H rifle. damn i miss that rifle
I too enjoy reading about my favourite bullet, but I have only played with the standard cartridge at standard velocity.
It sounds like I might have to add a new powder or two to my collection.
Brian, if i lived in a game rich country like Canada, I may have a pair of 375's in a custom belt rig on 90 degree swivels Seriously though, I'd load those grand old rifles up and let 'em sing, I honestly forgot how authoritative my old 375 AI sounded.
I've shot R17 in several of my rigs but not my 375 Wby as of yet. May get around to it this fall and may not. May just be a good winter project 4 me.
3100 with a 270 out of a 24" sounds a bit stout to me (if the clock is right) but hey if you're comfy with it then let it rip.
I'd not be comfy with 1.3" groups though (but that's just me), if that's the best 95 would give you then I'd drop off 150 fps or so and see if it didn't tighten up things considerably.
Just a thunk, and thx for the test notes.
Dober
(kind of wonder what you'd run a 235 TSX at...grin)
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
And Bitteroot Bob I do have a couple bags of old Roots, not sure if they're 275's or 270's but it's one of them. Keeping them for a special day, perhaps you and I and RinB should take them for a trip across the pond or to Alaska...grin
Dober
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
Yes dober, the 1.3" groups came from the variable quartering crosswinds today, calm winds and gettin' reaquainted with my old AI rifle will surely improve the groups to sub one inch, which is fine with me for a 375 cal. hunting rifle.
Been shootin' 577 and 500 Nitro double rifles and my old 505 Gibbs bolt rifle all summer, kinda different feelin' hammers if You know what i mean.
I found R-17 got me to some reaally impresive numbers in a 358WIN as well. Impressive numbers, there. Have you measured the web area ahead of the belt or the primer pockets before and after? Agreed that a 270 TTSX is going to be a MAJOR LEAGUE big game killer.
.............RL17 works well for a 375 Ruger too.
2900+ fps using a 270 gr from a 20" barreled Alaskan, isn`t too shabby I suppose.
Great performance Gunner. I hope your quest for velocity continues to be successful and safe.
If you're going to push them past 3,000 fps, have you thought about trying out 250gr TTSXs or 260gr Accubonds to retain more of that speed out near the next county?
Not to selfishly identify my own needs here, but I would love to see what you can do with a 350gr TSX out of that thing. Generally, that's what I like about magnum rifles: Not as much pushing smaller bullets hypersonic, as pushing bigger bullets fast. If you could get that 350gr TSX (0.425 B.C.) up in the 2,600 - 2,700 fps range or so, you would have a bullet that could flatly hit deer or larger game out to 400 yds and also take out a buffalo or elephant standing right next to you.
the scope is a 3x36 with the dotz and CDS. don't remember the plan behind both dotz and CDS, but i'm sure it was a good one.
only downside from the combo is having to zero the CDS @ 200, when i usually zero turrets @ 100. at least i learned to stick with M1 OR dotz from now on...
yea, getting the big bullets touching SHOULD be easier, but i gotta use the force to overcome the beating.
Guns don't kill people, drivers with cell phones kill people.
no, but i'm taking it into the backcountry to hunt sheep for a few days starting thursday. it's an area lousy with griz, so i wanted somethin' that'd scare 'em off. wolf season opens there on the same day.
Guns don't kill people, drivers with cell phones kill people.
Great performance Gunner. I hope your quest for velocity continues to be successful and safe.
If you're going to push them past 3,000 fps, have you thought about trying out 250gr TTSXs or 260gr Accubonds to retain more of that speed out near the next county?
Not to selfishly identify my own needs here, but I would love to see what you can do with a 350gr TSX out of that thing. Generally, that's what I like about magnum rifles: Not as much pushing smaller bullets hypersonic, as pushing bigger bullets fast. If you could get that 350gr TSX (0.425 B.C.) up in the 2,600 - 2,700 fps range or so, you would have a bullet that could flatly hit deer or larger game out to 400 yds and also take out a buffalo or elephant standing right next to you.
Thanks MarineHawk, I should be able to run the 350's @2700 pretty easy, very interesting idea You have there, I'm waitin' on my smith out in Colorado to finish up my 9.3X62, its built on a modern Heym bolt action, so the strength is there. Thinkin' the RL-17 would propel the 320 Woodleigh's to 2400+ real easy in the 25" barrel, Have the round noses and PP both in that weight, should be a purty good little plow in its own right
you probably remember this rifle, but this is why i only do three shot groups with it.
That oughta make for a nice, carry-all-day gun. You're 7 oz. under the weight of my Bee and churning up about the same ft/lbs at the front with your 260 load as my 250 load. Shouldn't be that hateful to shoot, really, is it ?? Probably could get pretty owly with full-boat loads. What for pad do you have on the hind end ??
Sure groups like a banshee, don't it ?? Nice rifle and nice shootin' !!
the pad is a 1" Decelerator, stock is the Rem AK Ti stock.
shooting it really isn't that brutal. I'd rather shoot this than carry my 9# 8 oz M70 all day. no mistakin a hit on steel either. LOL.
the rifle is a stainless SPS barreled action cut to 23" and dropped into the AK Ti stock i had on the shelf. i inlet it for the Badger M5 bottom metal.
Guns don't kill people, drivers with cell phones kill people.
You're getting me pyched to get my 375 Bee set up with dotz or turrets and rock some Yotes.
Dober
The sound of a 3/8" projectile leaving with 5500 ft/lbs or so makes an unmistakable sound whacking T1 at 300m, don't it ?? VERRRRRY satisfying !!
Never took my Bee 'yote hunting. But did poke this 'chuck at +/- 290 yards with it. Kinda disapointing in the "carnage" department. My Swift woulda torn it in half. But it gives me a warm, fuzzy feeling to go vermin hunting with a Big 5 capable rifle.
Thanks MarineHawk, I should be able to run the 350's @2700 pretty easy, very interesting idea You have there...
If you can achieve that, and you sight in so the bullet peaks at 3-inches high at 150yds, then at 300 yds, the 350gr TSX bullet would still be traveling at 2,100 fps/3,424 ft-lbs and be only 6.1-inches below the sight line. You could take out elephants or half-tracks at close range and still have a flat trajectory out to 300yds where the bullet would have almost the muzzle energy of a 300 Win Mag. That would be a great one-gun Africa setup. Overkill for anything in N. America.
I dug up that old article in Rifle magazine and for those interested it's in the November/December 1973 issue.The author was John Y. Williamson and he rechambered two rifles;a Rem 700 and a M70 Winchester.
He topped out at 96 gr of the old N205 with the 270 gr Nosler Partition for a velocity of 3024 fps;with 94 gr the 300 gr NPT did 2915....not too shabby,considering we are 38 years after the fact and gunner has managed to notch it up to over 3100 with the same bullet and RL17.
I recall in messing with Thor that it measured in the mid 2900's with the 275 gr Bitterroot but don't recall the precise charges.
In any event these blown out 375's of whatever name and pursuasion can offer a guy some substantial increases in velocity if he somehow finds the standard H&H case lacking somehow.
Thanks MarineHawk, I should be able to run the 350's @2700 pretty easy, very interesting idea You have there...
If you can achieve that, and you sight in so the bullet peaks at 3-inches high at 150yds, then at 300 yds, the 350gr TSX bullet would still be traveling at 2,100 fps/3,424 ft-lbs and be only 6.1-inches below the sight line. You could take out elephants or half-tracks at close range and still have a flat trajectory out to 300yds where the bullet would have almost the muzzle energy of a 300 Win Mag. That would be a great one-gun Africa setup. Overkill for anything in N. America.
MarineHawk, I ran some numbers on the 300 gn Accubond at 2900 fps, they are quite impressive for all NA and African plains game and I think they would be equally effective on cape buffalo and the cats. I have to believe the accubonds will perform better than the 270 hornady spitzer and 300 gn hornady round nose bullets of old at speeds approaching the 378 Weatherby, even one the dangerous animals.
At 400 yds it still packin' 2176 fps. and 3154 ft. lbs. and is only -11" w/ a 300 yd. zero and blown 11" off in a 10 mph wind @ 90 degrees.
I dug up that old article in Rifle magazine and for those interested it's in the November/December 1973 issue.The author was John Y. Williamson and he rechambered two rifles;a Rem 700 and a M70 Winchester.
He topped out at 96 gr of the old N205 with the 270 gr Nosler Partition for a velocity of 3024 fps;with 94 gr the 300 gr NPT did 2915....not too shabby,considering we are 38 years after the fact and gunner has managed to notch it up to over 3100 with the same bullet and RL17.
I recall in messing with Thor that it measured in the mid 2900's with the 275 gr Bitterroot but don't recall the precise charges.
In any event these blown out 375's of whatever name and pursuasion can offer a guy some substantial increases in velocity if he somehow finds the standard H&H case lacking somehow.
I wish I could have read that old article to Bob, but I was 10 in '73
I used to run MRP in the WBY cals back then, and have been foolin' w/ the 375 AI's since the early ninties, and came across around 10 lbs. of the old N-205 at a gun show, with the 205 gone N-204 has been the next best thing for my rifle, that is until the other days little RL-17 experiments. And the old H&H has never been lacking to me, I still have one, and always will, just kinda fun seeing what else can be accomplished in a given amount of capacity.
Bob mentioned Thor and it was one of a pair of 375 H&H AI's which I had built somewhere around 1989-1992. The action (pre 64 M70's) and barrel work was done by the late great Tom Burgess and then both were stocked in synthetic. One had an 1-8 and the other a 1-9 twist. The weights were 7.25 and 7.5. The only thing I have shot that hurt me more was a light 378 Wby. Both would drive 250 BC's over 3125 with either 4895 or 4064. The barrel lengths were 21 and 23. I eventually sold both. They were very difficult to shoot well but were very accurate. One went to a fellow in New England and the other is in Boise.
I also had Tom make a 375 Wby and it was the same thing with a different shoulder angle. Then I tried a 375-06 AI/ They are all gone as well.
Last edited by RinB; 09/14/11.
“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away”. Antoine de Saint-Exupery. Posted by Brad.
Gunner, In my RUM i just got back from tanzania and used 100 grains of 7828 with 300 tsx for 2850 fps but i would not mind trying rl-17 with some diffrent bullets just to see I just do not quite know where to start
Okay, i see what You mean now, I would start at 90 gns. of RL-17 with a 250 gn. Barnes TTSX bullet and work up slowly, the 17 may be a very good powder in the 375 RUM with the lighter bullet weights ie 235/250.
10-Roger mound, Barnes lists 85 gns of RL-17 for there 350 TSX, so 90 with there 250 will be a nice mild starting point, a 250 TTSX @3300 fps would not surprise me one bit from Your RUM. I bet You didnt recover many of those 300's did ya?
I wish I could have read that old article to Bob, but I was 10 in '73
Gunner
Kids....
Gunner if you want drop me a PM with contact info and I will get you the article.
RinB; All these years I thought it was Thor I had shot but was not aware you had built two of the things....did not know Burgess did the metal on that rifle, but it sure was a nice one.....recoil was stout, to say the least
I actually did recover one it was perfect. I shot a zebra slight quarter and found bullet in his back hip all petals intact and perfect. I will give the 250 ttsx a try and see what happens
does anyone know where to start with 375 RUM with rl17 with 270 TSX or 300 grains. any info would help me test the RUM with rl-17
QL shows 90 gr. RE17 to be about max with the 270 gr. TSX in the .375 RUM. i've seen that QL is conservitive in the .375 RUM data without tweaking the weighting factor, but i'd still back it off to 80-85 gr. and work up. i know working up a load with $1 bullets sucks...
i'm using 90 gr. RE 17 under a 260 gr. Nosler AB with mild pressures, both observed and computed.
i haven't tried leaning on it too hard. the purpose of my project wast to equal or slightly exceed standard .375 H&H performance in a lighter shorter package and at lower pressures (to preclude extraction issues in the field).
Guns don't kill people, drivers with cell phones kill people.
I wish I could have read that old article to Bob, but I was 10 in '73
Gunner
Kids....
Gunner if you want drop me a PM with contact info and I will get you the article.
RinB; All these years I thought it was Thor I had shot but was not aware you had built two of the things....did not know Burgess did the metal on that rifle, but it sure was a nice one.....recoil was stout, to say the least
Wonderful old article, and Thanks a bunch for sending it Bob
I've been wrong b4 and could well be this time again and maybe just maybe I should keep my mouth shut on this one but I just can't. Sorry guys..grin
I keep coming back to my experiences with R17 and H4350 and this is only based off my experience with My 375 Wby with H4350 as I've not run 17 in it yet.
But, 95 seems like a ton load, and the speed your getting (3110 with a 270) is a bit stout. Fact is and like I said I could be wrong on this but it may be safe in your rig but I doubt it would be in others.
Gotta wonder what kind of pressure you're getting with this load as my gut tells me that it'd be well over the top in most rigs..
But, like I said I could be wrong. What kind of primer pocket life are you getting out of the load? I'd bet the pockets will be loosy goosy after 3 dings at best.
Sorry gang, don't mean to be a kill joy on this but this just doesn't seem right to me. I'll give 17 a go in my rig just to see how it perks/works in mine.
Thx
Dober
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
I'm using 92.0 gr. of H414 (not quite max in my rifle, I don't believe) behind my 250's and primer pockets are tight as a flicker's nest after 10 or more loadings. But it's 3 grains less powder and 20 grains less bullet.
My Bee does have the new style/dimension freebore.
I hope you believe in resurrection. This thread is being brought back to life after several years. I spent a couple hours trying to find info on the .375 improved or .375 Weatherby and finally found this tread on BING. Does your rifle have the Weatherby freebore?
I have some 1.405" long Hammer Sledgehammer 275 grain bullets that need a powder to scratch my need for speed itch. It sounds like your experience with RL17 will do that. I ran 3,180 with mine from a 27 1/2" barrel firing TTSX 250 grainers. I'm hoping to get 3,000 with the 275 grainers using your powder.
"Only Christ is the fullness of God's revelation." Everyday Hunter
Ringman, I’m easily getting 3130 fps with 250 TTSX’s from my 24” AI. Capable of pushing faster, but the groups were starting to open up. Love that RL 17! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
LOL Ringman, no WBY freebore, my rifles a standard cut 375 AI, you could start at 80grs of RL-17 and work up carefully with a chrono.
memtb, dang right, I've since backed all my loads down to an even 3K with the 270gr TSX, more accuracy and less recoil, and heck, when you get to that level it simply doesn't matter as far as killing goes.
I tried some in my Sako FN in 375 Why and had good results. It's a relatively flexible powder, IMO.
It's a damn good powder L2S, I use it in my standard 375 H&H to power 300gr BBW #13 solids to 2700 fps and 300gr Partitions to 2680 fps, both with really good accuracy from the old pre-64.
gunner500, When I burn up all of these darn 250’s I bought, thinking Barnes would “never” offer a heavier TTSX or a LRX, They brought out the 270 LRX. I’m thinking if I can get 3000 to 3100 fps, with accuracy, it would become my “do it all” bullet in my AI. Of course, as soon as I get the 270 LRX “rolling”....they’ll bring out the 290 grain LRX/TTSX that I begged for! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
BWAHAHAHA, hell yes they would, but for me, shooting bigger stuff with 375's, that 270gr LRX at 3 or 3100 would get a man to 500 with ease, that would more than satisfy me.
I’d probably bitch if I were “hung with a new rope”! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
I’d probably bitch if I were “hung with a new rope”! memtb
LMAO! me too, speaking of rope, I just bought Wife a brand new pink, extra soft lead rope yesterday for her horse, and yeah, I'd start bitching if it got slip-knotted around my neck too, she doubles them as a leash to walk her female Rottweiler puppy.
I’d probably bitch if I were “hung with a new rope”! memtb
LMAO! me too, speaking of rope, I just bought Wife a brand new pink, extra soft lead rope yesterday for her horse, and yeah, I'd start bitching if it got slip-knotted around my neck too, she doubles them as a leash to walk her female Rottweiler puppy.
Be careful talking about that Rottweiler puppy, they’ll soon be banned here, much like the Pit Bulls! What If your bride thinks, that brand new pink, extra soft lead rope, looks good on you? Never mind......forget I mentioned that! memtb
Last edited by memtb; 03/26/19.
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
All is good here! I have a “warped, oil field” sense of humor.....sometimes offending normal people. I try to minimize my time spent with “normal” people. Hence, my time spent here! Take care, and burn some powder.....just don’t “ burn the candle at both ends”! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
Never spent any time on a rig....but almost 30 years in sour gas plants, with many of the other operators having rig experience....you receive the mindset by osmosis! I just impressed myself, “osmosis” .....my new “word of the day”! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
Nice, always room for another wrinkle on our brains, I bet you heard/saw it all there too. I do have a chit-ton of reloading work waiting on me out n the shop, I need to get on it.
I need to do a little loading and shooting. But, can’t stand (or sit straight-up) but for a little while. Screwed-up my back “royally” around Jan 1st, a little over 2 months doing nothing. Only in last 3 weeks doing a little....then recline and hurt for hours! MRI’s and Dr.’s see nothing, but...I’m feelin* something! We had big plans for the winter, a little lion hunting, coyote hunting, ice fishing, and work around the house. Well, at least I didn’t have to work around the house! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
Ok,,,,, Nice work, but I am curious though,,,,,, what is your "Free-Bore",,,,,, I would suspect it's in the .250 thou. range, and not the Wby. Factory@ .373 thou., I had my .375 Wby. H&H punched out in the late 90's by Bob West, in Eugene Or., and I always thought it was the Wby. Factory "Free-Bore",,,,, but going thru some old paper work the other day, I found Bob's Work Order, and Invoice,,,,, he used a Reamer from PT&G @ .250 thou. "Free-Bore",,,, and that kind of makes sense now that I think of it, as I always wondered why it shot the H&H rounds so Accurate,,,, as a Buddy of mine has a .375 Wby. Factory Gun, and it does not shoot quite as Accurate with the H&H rounds as mine does,,,,, so in asking and "Googling" a bit, the Standard H&H has about .80-.90 and some at .125 thou. +/- "Free-Bore",,,, anway, I'm assuming that the "Free-Bore" you have,,,,, is why you are able to work-up those HOT Loads, and not have any issues.
I need to do a little loading and shooting. But, can’t stand (or sit straight-up) but for a little while. Screwed-up my back “royally” around Jan 1st, a little over 2 months doing nothing. Only in last 3 weeks doing a little....then recline and hurt for hours! MRI’s and Dr.’s see nothing, but...I’m feelin* something! We had big plans for the winter, a little lion hunting, coyote hunting, ice fishing, and work around the house. Well, at least I didn’t have to work around the house! memtb
Damnit! memtb, I hate like hell to hurt my damn self, it simply takes too long to heal anymore, here's hoping you get righted and back in the saddle ASAP.
Ok,,,,, Nice work, but I am curious though,,,,,, what is your "Free-Bore",,,,,, I would suspect it's in the .250 thou. range, and not the Wby. Factory@ .373 thou., I had my .375 Wby. H&H punched out in the late 90's by Bob West, in Eugene Or., and I always thought it was the Wby. Factory "Free-Bore",,,,, but going thru some old paper work the other day, I found Bob's Work Order, and Invoice,,,,, he used a Reamer from PT&G @ .250 thou. "Free-Bore",,,, and that kind of makes sense now that I think of it, as I always wondered why it shot the H&H rounds so Accurate,,,, as a Buddy of mine has a .375 Wby. Factory Gun, and it does not shoot quite as Accurate with the H&H rounds as mine does,,,,, so in asking and "Googling" a bit, the Standard H&H has about .80-.90 and some at .125 thou. +/- "Free-Bore",,,, anway, I'm assuming that the "Free-Bore" you have,,,,, is why you are able to work-up those HOT Loads, and not have any issues.
LOL, same here AK375DGR, my 'smith got a reamer, cut a few threads and drilled it, I have no idea the freebore, I have loaded 300gr SAF's, 300gr Partitions and the 270gr TSX's to max mag box length of 3.600" in the magnum length M-70 action, all functioned and shot so well I didn't have/need to experiment with seating depths, did back all loads down to 3.585" for a little clearance insurance should a speedy reloading of the rifle need to happen, hope that helps.
Thanks gunner500, getting there....just very slowly! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
Curious how R16 will do. It loads close to R17 and may be slightly denser. I will bet I can get the 235s to 3,000 without a sweat with R16. A 270 at 3,000 is starting to get my attention recoil wise so not sure I want to go there. Oops just noticed we are talking 375 AI.
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
Rl17 maxed out in volume at 87 grains. Velocity is 2,953. I tried W760 and it looks good. Smaller groups and higher velocity.
Hope that WW 760 works out for you, did you not use/have a drop tube? but, if you're where you want to be, it doesn't really matter as far as killing goes anyway, I'm more than happy at 3K with 270gr TSX's, three into .7 at 100 with no wind is more than good enough for any big game hunting to 400 yards with that bullet.
I've read plenty of accounts of 375 H&H's blowing petals off, figure i'll have an expanded solid blasting out the offside of game leaving at 3K, all will be good, the damage done for that to happen will have to be extremely significant.
Dam Gunner I'm going the other way with my 375. Using 225gr pistol bullets at about 1900 FPS. You can hear it hit the target and it will flat thump a deer. BUT I just got two boxes of NAB and will have to try R17.
Good luck with the Rott pup, we had one for 13+years and she was a great dog.
LOL, i'll begin cutting the throttle back too someday GSP, this test was more about science than kill ability, and Thanks for the pup well wishes, i'll pass them on to the Wife.
I love the big stuff but there is a severe shortage of Buffalo and Jumbo's here in MI but there are tons of deer and the reduced loads for my 416 Taylor the 375 and 450/400 can turn them into nice deer rifles.
I love the big stuff but there is a severe shortage of Buffalo and Jumbo's here in MI but there are tons of deer and the reduced loads for my 416 Taylor the 375 and 450/400 can turn them into nice deer rifles.
You bet GSP, another reason why it's so hard for me to want to drive up to Montana for that Double Rifle Shoot, it would be loads of fun AND cool experience/camaraderie, but heck, I can walk out the back door right here and get the mortal chit kicked out of myself.
That would be fun but it's a long way to go for a day. How are the prairie dogs around you? I love shooting those little bastards, most fun a man can have with his pants on:)
I have read all of this with interest. I have a 375 H&H that has been reamed to .375 Wby. Has anybody got an idea of the different Weatherby freebore versions? My rifle appears to have well over 0.400" of freebore. Did the Wby come out with that much freebore ever, or has the 'smith got a reamer with a custom freebore design?
AussieSteve, iirc Weatherby's have a standard 3/8th's inch freebore in factory form, you could start at 83 grains of RL-17 under the 270gr TSX's, working up with a chronograph to see what yourself and your rifle like.
I am using the 270gn Hornady SP and have worked up to 95gns of Re22 with no signs of pressure. I have loaded a few more with a COL equal to the mag length,
I'll see how they go, loaded up to 97gns of Re22. I use Re17 with 225's, 94gn IIRC gave me very near 3200fps.
Rifle Winchester classic M-70 375 Ackley Bullet Barnes .375 cal. 270 gn. TSX Powder Alliant RL-17 95 gns. MAX Primer Fed. 215GM Magnum COL 3.590 Vel. 3110 fps
Chrono results w/ RL-17 and 270 TSX
83 2728 85 2782 87 2820 89 2855....started using little Sagebrush drop tube 91 2940 92 2992....now were gettin' somewhere 93 3046....Damn! still no high pressure signs 94 3078....unreal 95 3110....I quit, how dead does it need to be
All loads fell from chamber in my rifle, absolutely no signs of excessive pressure.
Loaded three rounds @95 gns. and a COL of 3.590, shot from bags in a variable to nine mph wind out of the SSW, POA was dew North, group went 1.31, unreal accuracy and speed, it will be a sub" load in calm conditions
I believe this powder will be absolute dynamite w/ 300 gn bullets as well as the new .375 cal. 250 gn. TTSX's, The 250 gn. TTSX'x @3250...... how bout that for an elk/moose/big bear load?
Be safe all, and hang on!!
Gunner
Edit" spelling
Those are 378 Wby velocities and I know Bees well.
Rifle Winchester classic M-70 375 Ackley Bullet Barnes .375 cal. 270 gn. TSX Powder Alliant RL-17 95 gns. MAX Primer Fed. 215GM Magnum COL 3.590 Vel. 3110 fps
Chrono results w/ RL-17 and 270 TSX
83 2728 85 2782 87 2820 89 2855....started using little Sagebrush drop tube 91 2940 92 2992....now were gettin' somewhere 93 3046....Damn! still no high pressure signs 94 3078....unreal 95 3110....I quit, how dead does it need to be
All loads fell from chamber in my rifle, absolutely no signs of excessive pressure.
Loaded three rounds @95 gns. and a COL of 3.590, shot from bags in a variable to nine mph wind out of the SSW, POA was dew North, group went 1.31, unreal accuracy and speed, it will be a sub" load in calm conditions
I believe this powder will be absolute dynamite w/ 300 gn bullets as well as the new .375 cal. 250 gn. TTSX's, The 250 gn. TTSX'x @3250...... how bout that for an elk/moose/big bear load?
Be safe all, and hang on!!
Gunner
Edit" spelling
Those are 378 Wby velocities and I know Bees well.
It’s awesome.....don’t ya just love those AI’s! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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wolf season opens there on the same day.
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memtb
