silicosys4
Member
- Joined
- Jun 29, 2012
- Messages
- 3,710
Hello,
So I have a 1902 Carl Gustaf small ring Mauser, 1896 receiver, that has been rebarreled by Kimber into a .308. I don't really feel comfortable loading to the top of the .308's pressure specs, but I'd still like to do some paper punching and hunting with the gun.
What powders should I look into that will give me decent velocity? say, 2750 fps with a 150 gr sp, +\- 50 fps or so, while staying below the pressure the rifle was originally chambered in, the 6.5x55, which was at 51k psi max chamber pressure vs 61k psi for the .308....just for safety and early metallurgy's sake.
Powders I have are:
Varget,
Imr 4064
Imr 3031
H380
H414
Imr 4350
Imr 4831
Reloader 22.
The last two I don't think would be even useable, as I don't have any data for that slow of powder for .308
Of those, according to the data I can find, the 3031 and h380 look promising, but the 4064 and varget are too high pressure unless downloaded. I was having troubles developing a good load with either 3031 or h380 last I tried, but I think I was having scope issues as well. I am also having trouble translating, half the loads are listed in cup, half in psi.
I am tempted to find some win 748 to experiment with though.
Any thoughts? Lyman's 49th has been my guide so far
Thanks.
So I have a 1902 Carl Gustaf small ring Mauser, 1896 receiver, that has been rebarreled by Kimber into a .308. I don't really feel comfortable loading to the top of the .308's pressure specs, but I'd still like to do some paper punching and hunting with the gun.
What powders should I look into that will give me decent velocity? say, 2750 fps with a 150 gr sp, +\- 50 fps or so, while staying below the pressure the rifle was originally chambered in, the 6.5x55, which was at 51k psi max chamber pressure vs 61k psi for the .308....just for safety and early metallurgy's sake.
Powders I have are:
Varget,
Imr 4064
Imr 3031
H380
H414
Imr 4350
Imr 4831
Reloader 22.
The last two I don't think would be even useable, as I don't have any data for that slow of powder for .308
Of those, according to the data I can find, the 3031 and h380 look promising, but the 4064 and varget are too high pressure unless downloaded. I was having troubles developing a good load with either 3031 or h380 last I tried, but I think I was having scope issues as well. I am also having trouble translating, half the loads are listed in cup, half in psi.
I am tempted to find some win 748 to experiment with though.
Any thoughts? Lyman's 49th has been my guide so far
Thanks.