|
Joined: Jun 2012
Posts: 1,902
Campfire Regular
|
OP
Campfire Regular
Joined: Jun 2012
Posts: 1,902 |
Anybody have a preferred powder for the 338 RCM?
|
|
|
|
Joined: Feb 2001
Posts: 7,968
Campfire Outfitter
|
Campfire Outfitter
Joined: Feb 2001
Posts: 7,968 |
RL 17 with 225 gr bullets. Ram Shot Big game and RL 15 also worked well with 225 gr bullets.
RL 17 was a little faster and found a common load that worked in the 2 338 RCM rifles I own.
kk alaska
Alaska 7 months of winter then 5 months of tourists
|
|
|
|
Joined: Jun 2012
Posts: 1,902
Campfire Regular
|
OP
Campfire Regular
Joined: Jun 2012
Posts: 1,902 |
Thanks. Open to any more suggestions if you got'em.
|
|
|
|
Joined: Nov 2005
Posts: 6,168
Campfire Tracker
|
Campfire Tracker
Joined: Nov 2005
Posts: 6,168 |
I have done a few msotly BLC-2 and 2520 with 210's
The collection of taxes which are not absolutely required, which do not beyond reasonable doubt contribute to public welfare, is only a species of legalized larceny. Under this Republic the rewards of industry belong to those who earn them. Coolidge
|
|
|
|
Joined: Aug 2021
Posts: 1,653
Campfire Regular
|
Campfire Regular
Joined: Aug 2021
Posts: 1,653 |
Reloder 17 is THE powder for .338 RCM 225's and 250's.
|
|
|
|
Joined: Jan 2002
Posts: 4,285
Campfire Tracker
|
Campfire Tracker
Joined: Jan 2002
Posts: 4,285 |
Getting great results with my 22" 338 RCM built on a Tang safety Ruger using 54 gr of Varget with the 225 accubond, velocity 2733. Chose Varget over RL-17 for its temperature stability.
When I first built it I tried:
225 accubonds: worked up to 61 gr of RL-17 / 2750 fps with Fed 210 match primer. 180 nosler bt: worked up to 64 gr of RL-17/ 3045 fps. 62 gr had same POI at 225s. 215 sierras: worked up to 55 gr of Varget, most accurate 54 gr/ 2730 fps. 215 sierras: worked up to 64 gr of H4350/ 2865 fps
Got my hands on some 185 fusions recently: XBR 8208 with 185 fusion 52.5 2694 53.5 2732 54.5 2784, 2785 most accurate
|
|
|
|
Joined: Aug 2021
Posts: 1,653
Campfire Regular
|
Campfire Regular
Joined: Aug 2021
Posts: 1,653 |
Getting great results with my 22" 338 RCM built on a Tang safety Ruger using 54 gr of Varget with the 225 accubond, velocity 2733. Chose Varget over RL-17 for its temperature stability.
When I first built it I tried:
225 accubonds: worked up to 61 gr of RL-17 / 2750 fps with Fed 210 match primer. 180 nosler bt: worked up to 64 gr of RL-17/ 3045 fps. 62 gr had same POI at 225s. 215 sierras: worked up to 55 gr of Varget, most accurate 54 gr/ 2730 fps. 215 sierras: worked up to 64 gr of H4350/ 2865 fps
Got my hands on some 185 fusions recently: XBR 8208 with 185 fusion 52.5 2694 53.5 2732 54.5 2784, 2785 most accurate How far out can you seat the 225 Accubonds with the Tang safety Ruger? In the Hawkeye Ruger 2.86" is about maximum. A 3" box would be better.
|
|
|
|
Joined: Jun 2012
Posts: 1,902
Campfire Regular
|
OP
Campfire Regular
Joined: Jun 2012
Posts: 1,902 |
Great thanks. Now I have to see what I have on the shelf, or availability if I need to order.
|
|
|
|
Joined: Jan 2002
Posts: 4,285
Campfire Tracker
|
Campfire Tracker
Joined: Jan 2002
Posts: 4,285 |
I had all three of my Ruger tang safety mag boxes lengthened. Altered SA mag box is 3.050", I seat bullets around 3.030"
|
|
|
|
Joined: Aug 2021
Posts: 1,653
Campfire Regular
|
Campfire Regular
Joined: Aug 2021
Posts: 1,653 |
I don't think the magazine box on the .338 RCM Hawkeye can be lengthened unfortunately. That was the impression I got last time I pulled it apart and looked.
|
|
|
|
Joined: Jan 2002
Posts: 4,285
Campfire Tracker
|
Campfire Tracker
Joined: Jan 2002
Posts: 4,285 |
It requires some milling of the inletting for the mag box then cutting and lengthening the mag box. Wyatts mag boxes alsdo require some action inletting on a variety of rifle actions. Don't see why the hawkeye can't have it done as well.
|
|
|
|
Joined: Aug 2021
Posts: 1,653
Campfire Regular
|
Campfire Regular
Joined: Aug 2021
Posts: 1,653 |
It requires some milling of the inletting for the mag box then cutting and lengthening the mag box. Wyatts mag boxes alsdo require some action inletting on a variety of rifle actions. Don't see why the hawkeye can't have it done as well. I'll have another look. Thanks for the information. I've installed longer Wyatts in Remington 700 short actions.
|
|
|
|
410 members (160user, 1Longbow, 204guy, 12344mag, 10gaugeman, 10ring1, 38 invisible),
2,040
guests, and
1,097
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums81
Topics1,192,377
Posts18,488,445
Members73,970
|
Most Online11,491 Jul 7th, 2023
|
|
|
|