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Campfire 'Bwana
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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. Gunner
Trump Won!
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Campfire Ranger
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Campfire Ranger
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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
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Campfire Ranger
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Campfire Ranger
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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
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Campfire 'Bwana
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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  . Gunner
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Campfire Outfitter
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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.
28 Nosler,,,,300WSM,,,,338-378 Wby,,,,375 Ruger
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Campfire 'Bwana
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Campfire 'Bwana
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Dober that sounds like a good idea  Those are 275's you have and they work good in the H&H case....but better in the 375 Weatherby... 
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Campfire Regular
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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.
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Campfire Tracker
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my .375 Ultra does ok with the 260 NAB. i'm running them at just under 3000 fps. this delivers .270 Win. ballistics with twice the bullet weight. ![[Linked Image]](http://i399.photobucket.com/albums/pp78/1sikpupi/100_1780_00Large.jpg)
Guns don't kill people, drivers with cell phones kill people.
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Campfire Ranger
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Dang my rifle shoots well, how'd you scope it.. One of the things I love about the bigger boys is that they're so dang easy to get to shoot bug holes! Dober
Last edited by Mark R Dobrenski; 09/13/11.
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
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Campfire Tracker
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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.
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Campfire Ranger
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Awesome turn it loose! You have a lope tag this year?
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
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Campfire Tracker
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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.
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Campfire 'Bwana
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Campfire 'Bwana
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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 Gunner
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Campfire 'Bwana
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Nice rifle and shootin' there toad , that will make elk steaks muy pronto. Gunner
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Campfire 'Bwana
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my .375 Ultra does ok with the 260 NAB. i'm running them at just under 3000 fps. this delivers .270 Win. ballistics with twice the bullet weight. Anyone who can group a 375 RUM like that gets called Mr. Toad in my book.... 
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Campfire Tracker
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you probably remember this rifle, but this is why i only do three shot groups with it. ![[Linked Image]](http://i399.photobucket.com/albums/pp78/1sikpupi/100_1676Large.jpg)
Guns don't kill people, drivers with cell phones kill people.
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Campfire Tracker
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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' !!
Wollen nicht krank dein feind. Planen es.
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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.
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Campfire Ranger
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It do tend to move the steel around a bit... You're getting me pyched to get my 375 Bee set up with dotz or turrets and rock some Yotes. 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
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It do tend to move the steel around a bit... 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. ![[Linked Image]](http://i172.photobucket.com/albums/w14/strut10/DSC02861.jpg)
Wollen nicht krank dein feind. Planen es.
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