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Old July 23, 2013, 06:26 PM   #10
ChaperallCat
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Join Date: June 14, 2013
Posts: 81
i have read that the breechloaders were proofed to smokeless loads, but were marked with a black powder proof because the smokeless loads were a smokeless equivalent to the standard blackpowder load for that cartridge.

ie, your gun is rated for 60 grains bp, if you use smokeless powder its still generating the same pressure..
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