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What is the advantage in commercial ammo loaders loading +P or +P+ loads when similar or better velocities can be be achieved with a simple change of powders? I know that reliability and unifromity of burn are a factor, as well as muzzle flash, but are there any other reasons? Is there any gain either in internal, external, or terminal balistics to support this?
I'm wondering because I reload practive rounds to factory velocities, and often I can duplicate the velocity of +P loads with much lower (read "published safe") recipes. I do know that there have been a few cross overs from non canister powders to over the counter available powders, and if the big boys have all that chemical science at their disposal, why not +P or +P+ velocities with lower pressure powders?
Tom
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A "Miss" is the ultimate overpenetration!
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