Both the 9mm and .300 Blackout are popular subsonic/supersonic carbine cartridges that can tackle some of the same jobs.
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9mm vs. 10mm: which one really stops fights
If you carry a handgun for protection, you’ve probably had the 9mm vs. 10mm conversation more than once—maybe with a buddy, a range officer, or even a stranger in a gun shop. Both calibers have ...
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