7.7 grain into the exact same barrel but 17" long. It seems that the longer the barrel, the more powder you need to overcome the friction.( not mentioning all kind of bore dimensions going from 0.2984 up to 0.3020" in the gun industry...)
7.7 grain into the exact same barrel but 17" long. It seems that the longer the barrel, the more powder you need to overcome the friction.( not mentioning all kind of bore dimensions going from 0.2984 up to 0.3020" in the gun industry...)
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