I read (can't tell you where) that the firing residue of #7 consists partially of aluminum oxide. A very experienced IPSC shooter told me she wore out the first half-inch of a barrel with a few thousand rounds of #7-powered loads. The truth/accuracy of the former doesn't concern me as much as the latter.
#7 Alternative?
I've been hearing bad things about AA #7, and I just ran out of it, anyway; what's a good alternative for loading mid-range 10mm loads? I don't need to get 1400fs with 155's; 1200 is fine. 3N37 looks pretty good; any other suggestions? What about for full power (200/1200, 180/1300)?
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1 - 2 of 8 Posts
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