03-02-2014, 12:04 AM
Loaded some win 7.62x39 brass under sierra 85hp's with 29.3 grains 2230.
They went into .710 inch at 100 with a 2825 fps average.
Loaded 123sst's over 31.5 CFE at 2.25 in hornady brass and got .810 5 shot group average at 2474 fps and 38 fps ES.
7 shot group went .910.
Most accurate group is still 85 grain sierras with H-322 at .610 5 shot group.
Going to try some 95 grain V-maxs when they come in.
The upper seems to be breaking in pretty good.
They went into .710 inch at 100 with a 2825 fps average.
Loaded 123sst's over 31.5 CFE at 2.25 in hornady brass and got .810 5 shot group average at 2474 fps and 38 fps ES.
7 shot group went .910.
Most accurate group is still 85 grain sierras with H-322 at .610 5 shot group.
Going to try some 95 grain V-maxs when they come in.
The upper seems to be breaking in pretty good.