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First, establishing simple aim points for such widely varying ammunition types through a standard scope requires math and memorizing custom hold-overs. There have been two big problems with 300 Blackout that have inhibited wider adoption, at least in my opinion. I tested out some of the new Sig Sauer 300 Blackout ammo with an Aero Precision 7.5-inch barrel upper receiver mounted on a Springfield Armory SAINT Edge pistol lower. The sound of “thud” comes to mind when the noise of those heavy subsonic bullets hitting the backstop dwarfs the volume of the shot itself.
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The suppressed supersonic loads are muted, at least for the muzzle blast components of noise, and the subsonic loads are shockingly quiet when fired through a silencer. Adding a suppressor makes the 300 Blackout shine. That’s a lot of performance variance out of the same rifle or pistol. The ability to swap between supersonic and subsonic performance simply by changing magazines the availability of loads ranging from 110-grain rockets to 240-grain bricks is compelling features. I’ve always been a fan of 300 Blackout, mainly because it’s a ballistic geek’s delight. Innovative New 300 Blackout Ammunition From Sig Sauer