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300 BLK Subsonic vs. IIIA Body Armor



The Remington 220gr Subsonic in 300 AAC BLACKOUT is probably the most popular factory-loaded subsonic rifle round available. Though its power is the rough equivalent of a hot 45ACP load, the Sierra Match King bullet is pointed and streamlined. This load is tested against a panel of IIIA body armer to see if the bullet shape makes the difference.

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