it works out with quite a few smokeless powder cartridge combos ..... pretty darn close to ten grains of projectile weight added = minus 1-2 grn of powder....so its not at all out of the ordinary
it works out with quite a few smokeless powder cartridge combos ..... pretty darn close to ten grains of projectile weight added = minus 1-2 grn of powder....so its not at all out of the ordinary
75/15/10 black powder matters
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