|
Joined: Mar 2008
Posts: 3,509
Campfire Tracker
|
OP
Campfire Tracker
Joined: Mar 2008
Posts: 3,509 |
Kimber Montana CM 24" factory air temp 55 150 LRAB 58.5. 3058 59.0. 3062 59.5. 3091 60.0. 3106 60.5. 3128
Control Federal blue box 130 3079
“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.
|
|
|
|
Joined: Mar 2008
Posts: 3,509
Campfire Tracker
|
OP
Campfire Tracker
Joined: Mar 2008
Posts: 3,509 |
First two loads into one ragged hole...but of course Kimber's won't shoot
“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.
|
|
|
|
Joined: Apr 2005
Posts: 8,091
Campfire Outfitter
|
Campfire Outfitter
Joined: Apr 2005
Posts: 8,091 |
“Factio democratica delenda est"
|
|
|
|
Joined: Jan 2010
Posts: 8,170
Campfire Outfitter
|
Campfire Outfitter
Joined: Jan 2010
Posts: 8,170 |
Thanks. I just picked up a pound of RL26 and looking forward to trying this new load in my Pre64 Model 70 FWT.
donsm70
Life Member...Safari Club International Life Member...Rocky Mountain Elk Foundation Life Member...Keystone Country Elk Alliance Life Member...National Rifle Association
|
|
|
|
Joined: Mar 2008
Posts: 3,509
Campfire Tracker
|
OP
Campfire Tracker
Joined: Mar 2008
Posts: 3,509 |
JB thinks the vels are high. So do I actually. May have been sun angle. Will shoot again in a few days.
Last edited by RinB; 04/22/17.
“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.
|
|
|
|
Joined: Sep 2010
Posts: 4,001
Campfire Tracker
|
Campfire Tracker
Joined: Sep 2010
Posts: 4,001 |
Wonder how it would do with 130's?
I am continually astounded at how quickly people make up their minds on little evidence or none at all. Jack O'Connor
|
|
|
|
Joined: Oct 2000
Posts: 30,286
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Oct 2000
Posts: 30,286 |
In my 22.5" Kimber MT, 59.0 RL26 gives 3,010 fps with a 150. For me, that's the end of the game.
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
|
|
|
|
Joined: Feb 2006
Posts: 43,901 Likes: 11
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Feb 2006
Posts: 43,901 Likes: 11 |
JB thinks the vels are high. So do I actually. May have been sun angle. Will shoot again in a few days. That's cookin' for a 270 and 150's!
|
|
|
|
Joined: Sep 2010
Posts: 19,179
Campfire Ranger
|
Campfire Ranger
Joined: Sep 2010
Posts: 19,179 |
Rin - that's certainly attention getting for sure. If 3100 is safely doable it's worth the time/money/effort --- to me.
OTOH if 3000 is the top safe speed, it's not worth the extra time/money/effort TO ME because I was already getting 2900-2940 depending on lot variation.
At this point it's showing promise and thanks for doing the work.
Jerry
jwall- *** 3100 guy***
A Flat Trajectory is Never a Handicap
Speed is Trajectory's Friend !!
|
|
|
|
Joined: Aug 2010
Posts: 48,106 Likes: 8
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Aug 2010
Posts: 48,106 Likes: 8 |
I'm running 2920 fps average velocity with good accuracy in my pre 64 fwt. That's with 60gr. RL26 and partition... "Good enough for the girls I go out with"...
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
|
|
|
|
Joined: Feb 2003
Posts: 8,852
Campfire Outfitter
|
Campfire Outfitter
Joined: Feb 2003
Posts: 8,852 |
JB thinks the vels are high. So do I actually. May have been sun angle. Will shoot again in a few days. Me too. I've shot a couple lbs now of Re 26 and have never broke 3100 but did run it to 61.5 for 3075 in my 24" Kimber. I stopped at 60 gr and 3040-3050 depending on the day with a 150 NPT. I'm a skeered to run it any higher, plus an extra 50 ft/sec ain't buying me anything. At 3050, it runs really flat out to my max (500 yards). I shot 2 elk last year with that load - both under 75 yards, closer to 50. Bullet worked as advertised. The elk hated it <G>
Last edited by bwinters; 04/22/17.
Adversity doesn't build character, it reveals it.
|
|
|
|
Joined: Apr 2011
Posts: 15,307 Likes: 1
Campfire Ranger
|
Campfire Ranger
Joined: Apr 2011
Posts: 15,307 Likes: 1 |
That's great speed Rick and really, anything over 3000 with that sorta accuracy is pure icing on the cake.
Danged Kimbers! Ha.
Semper Fi
|
|
|
|
Joined: Jun 2006
Posts: 2,342
Campfire Regular
|
Campfire Regular
Joined: Jun 2006
Posts: 2,342 |
I have been attempting to simplify my life by reducing calibers and searching out universal loads. My old Oehlers are getting dusty and I use 270's a lot. I think I have/had it about close as I was going to get. This RL26/150 gr combination certainly grabs my attention, darn interesting performance. Never say never.
Imagine your grave on a windy winter night. You've been dead for 70 years. It's been 50 since a visitor last paused at your tombstone..... Now explain why you're in a pissy mood today.
|
|
|
|
Joined: Nov 2015
Posts: 639
Campfire Regular
|
Campfire Regular
Joined: Nov 2015
Posts: 639 |
Has anyone tried RL26 with 140 ABs? I've used 62gr of IMR7977 for the last 3 years or so to get ~2,950 or so fps out of a kind of slow 22" Tikka barrel. I tried RL16 yesterday and got up to 2,980 fps with promising accuracy using 8.5 gr less powder! I'm inclined to leave it there since RL16 is turning out killer velocity in my Creedmoor, and looks good in .30-06. But if 3,100 fps were possible in a 22" barrel with the 140 AB.... Well I'd have to give it a try.
|
|
|
|
Joined: May 2010
Posts: 723
Campfire Regular
|
Campfire Regular
Joined: May 2010
Posts: 723 |
My experience with RL 26 and 150 g. bullets in a bone stock Kimber Montana (24 inch barrel) is a little puzzling.
All were shot in PPU brass, WLR primers and the same lot of RL 26. Hazy to cloudy skies, temps in the 40-50 degree range, ProChrono chronograph. No missed shots by the chronograph in the testing.
Last fall with the 150 g. Hornady bullet; started at 57 grains of RL 26 working up in 0.5 grain increments with two shots at each increment: Charge Average Velocity in fps.
57.0 g. = 2886 57.5 g. = 2899 58.0 g. = 2921 58.5 g. = 2953 59.0 g. = 2993 59.5 g. = 2973 (not a typo) 60.0 g. = 2962 (also not a typo)
Then a total of 7 shots with the 60.0 g. load of RL 26 were chronographed in two different sessions a month apart. The average of them was 3044 fps.
This spring I repeated the same series only this time used the Nosler 150 g. partition bullet and started at 58 grains of RL 26.
Charge Average Velocity in fps.
58.0 g. = 3034 58.5 g. = 3058 59.0 g. = 3078 59.5 g. = 3123 60.0 g. = 3133
At the 59.5 g. and 60.0 g. pair one primer at each step had what appeared to be a slight primer leak, just a very small amount of black on the edge of a primer. The primer pockets on these cases after depriming appeared to be normal and new primers seated normally.
So I dropped the charge to 57.5 grains and a five shot average was 2945 fps. A week later shot another 5 shot test with 58.0 g. of RL26 and averaged 2973 fps. On the same day also fired two more with 57.5 g. of RL 26 and got 2963 fps for the two shots.
In other rifles I have been able to switch back and forth between Hornady and Partitions of the same weight and get very similar velocities and consistent performance.
John Barsness reports that Partitions often give higher pressures than cup-and-core bullets. For this rifle and bullet combination his observation is correct, even though it was out side of my previous - and admittedly limited - experience.
My results appear to vary from session to session even using what I consider to be identical loads. Some variation from shot to shot is typical but several shot averages show more difference from one session to another than experienced with other rifles.
Accuracy in my rifle is good, I've shot more than one 3 shot group at 100 yds that are under 1 inch. All shots (including some mild loads with 130 g. bullets) have flattened primers and the cases do not want to rechamber in the rifle without being resized. This is true of the PPU brass and WW brass I have tested. A fired case measured at the shoulder was 0.441". This is S.A.A.M.I. value given in my Nosler #6 Manual. I assume my Kimber has a minimum specification chamber. Consequently, I full-length resize cases for this rifle. After FL resizing the cases rechamber with just slight resistance
I will do more shooting but expect loads with the Partition bullet to be a couple of grains or so less than loads for other bullets.
A different 270 with a 23.6 inch barrel doing the same series with the 150 g. Partition bullet gave a two shot average of 3010 fps with WW brass, WLR primers and 60 g. of RL 26.
"It is wise, though, to remember above all else: rifle, caliber, scope, and even bullets notwithstanding, the most important feature of successful big game hunting is to put that bullet in the correct place, the first time!" John Jobson
|
|
|
|
Joined: Nov 2013
Posts: 28,813 Likes: 4
Campfire Ranger
|
Campfire Ranger
Joined: Nov 2013
Posts: 28,813 Likes: 4 |
While we're up, has anyone clocked 100gr NPs with RL26 in a .243?
The data in the Alliant sheet looks pretty good.
What fresh Hell is this?
|
|
|
|
Joined: Mar 2008
Posts: 3,509
Campfire Tracker
|
OP
Campfire Tracker
Joined: Mar 2008
Posts: 3,509 |
I have had many 270's and have never broken 2875 with any powder and any 150 so I am very pleased with 150's at 3000. More doesn't make any difference to me. Will try again with 145 ELD-X.
“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.
|
|
|
|
Joined: Oct 2016
Posts: 1,688
Campfire Regular
|
Campfire Regular
Joined: Oct 2016
Posts: 1,688 |
I have had many 270's and have never broken 2875 with any powder and any 150 so I am very pleased with 150's at 3000. More doesn't make any difference to me. Will try again with 145 ELD-X. Rin, More than a 150 at 3000 probably won't make any difference to the animal either. The nice thing about 270+R26+150 is you can get to 3000 and its a reasonable load that probably won't give you any fuss. I'm going to give R26 a try in the 270. I can see myself being pretty happy with 2900 which is right where my H4831SC load is. The only difference is my H4831SC load is max and a R26 load at 2900 should be more middle of the road. Probably doesn't matter much but as I get older I seem to have a greater appreciation for driving slower and loads that aren't pushing pressure limits. Trystan
Good bullets properly placed always work, but not everyone knows what good bullets are, or can reliably place them in the field
|
|
|
|
Joined: Mar 2008
Posts: 3,509
Campfire Tracker
|
OP
Campfire Tracker
Joined: Mar 2008
Posts: 3,509 |
Trystan Must be experience because every shooter I know eventually quits pushing pressure limits. 150's at 2950-3000 is perfect especially w/o brass busting pressure.
Last edited by RinB; 04/24/17.
“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.
|
|
|
|
Joined: Feb 2010
Posts: 17,927
Campfire Ranger
|
Campfire Ranger
Joined: Feb 2010
Posts: 17,927 |
Is this the part where "it's almost like a 7Mag"?
|
|
|
|
184 members (280shooter, 1OntarioJim, 257 roberts, 222Sako, 2500HD, 19 invisible),
1,670
guests, and
936
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums81
Topics1,192,372
Posts18,488,335
Members73,970
|
Most Online11,491 Jul 7th, 2023
|
|
|
|