Scott Ames
Member
- Joined
- Jun 8, 2022
- Messages
- 13
- Reaction score
- 21
On another forum a member is talking about 3,900 fps with 320 gr. 45 cal SML. This was witnessed by another shooter and chronographed on 2 separate chrono's. They were getting these speeds with IMR 7828 SSC and
VV N165. I have looked all over and can't find any data on these slow powders. Using IMR 4198 I got to 3000 fps and my Arrowhead magnum modules were getting tight in the depriming shell holder so I backed off to 2800 fps. They were talking about 338 Lapua long range performance. Is there anywhere that I could go to find out about these types of slow powders and their safe use in SML's.
My accuracy with 4198 is fantastic and neither of the above powders is available here right now but curious if the slower powders have a place in the new SML's. I also wonder if anyone has a source on Alliant powders like RL-16, RL 23 for use in SML's?
My SML
Blueprinted 700 Magnum action
Bartlein 26" heavy Palma SS barrel, 45 cal with 1 in 20 twist (6 inch tenon)
10 gill brake
Trigger Tech trigger
Macmillan stock
Arrowhead magnum ignition system
I obviously don't need any accuracy help, but the recoil at 3000 was getting very noticeable and if the slower powders give a more comfortable recoil impulse I would like to get back to 3000 fps safely.
VV N165. I have looked all over and can't find any data on these slow powders. Using IMR 4198 I got to 3000 fps and my Arrowhead magnum modules were getting tight in the depriming shell holder so I backed off to 2800 fps. They were talking about 338 Lapua long range performance. Is there anywhere that I could go to find out about these types of slow powders and their safe use in SML's.
My accuracy with 4198 is fantastic and neither of the above powders is available here right now but curious if the slower powders have a place in the new SML's. I also wonder if anyone has a source on Alliant powders like RL-16, RL 23 for use in SML's?
My SML
Blueprinted 700 Magnum action
Bartlein 26" heavy Palma SS barrel, 45 cal with 1 in 20 twist (6 inch tenon)
10 gill brake
Trigger Tech trigger
Macmillan stock
Arrowhead magnum ignition system
I obviously don't need any accuracy help, but the recoil at 3000 was getting very noticeable and if the slower powders give a more comfortable recoil impulse I would like to get back to 3000 fps safely.
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