Best Powder for Sierra 165gr. .308 boattail in .300 Win.Mag?

sewwhat89

Well-Known Member
Joined
Jul 26, 2005
Messages
773
Location
East TX
The load I am shooting now is 78 gr IMR 4831 at 3221 fps. That is out of a 24.5" barrel. RL 22 may top that velocity, though.

Upwards of 80 gr RL 22 or 85 grs of RL 25 may be the speediest ticket.
 

roninflag

Well-Known Member
Joined
Feb 27, 2006
Messages
3,276
Location
az
i use 71 or 72 grains of i-4350; lapua brass and either a 215 or a wlrm primer. if you want more velocity a max load of h-4831 or a max load of re-22.
 
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