I’ve only ever used sig brass in 300 blackout. I’ve had loose primer pockets on other brands of brass, but usually after multiple firings of heavy loads. When they reach the point where the primer can be tapped out, I toss them.
JTD
I’ve only ever used sig brass in 300 blackout. I’ve had loose primer pockets on other brands of brass, but usually after multiple firings of heavy loads. When they reach the point where the primer can be tapped out, I toss them.
JTD
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