300 Blackout Rattler vs. DD AR15 in 300BLK- a versatile caliber or useless? With MrGunsnGear

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300BLK, or 300 Black Out, is one of the most versatile calibers on the market. It works out of an 5.56 sized AR15, it suppresses amazingly well, it is capable of supersonic speeds for extended distances, and it has mild recoil. It's a bit of a jack of all trades for someone looking to do multiple things with their rifle or pistol.

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