Product Description
Performance Overview
Velocity: 1050 FPS
Kinetic Energy: 593 ft-lbs
BC 0.531 G1
The 300 AAC Blackout "Big Brother" 242 gr Subsonic Maker REX NAS3 is the ultimate choice for defensive and hunting applications. Featuring a 242-grain solid copper projectile and Shell Shock's advanced NAS3 casing, this round is designed for subsonic precision and maximum terminal performance. With its unmatched expansion and reliability, "Big Brother" sets the standard for subsonic 300 Blackout ammunition. This round is for 1:5 twist only and it will feed in semi auto weapon systems. OAL is saami max length.
Designed as the "Big Brother" to Phantom Defense’s popular "Slow Papi," the new 242 gr Big Brother replaces our legacy 220 gr load. Here we are offering a heavier, harder-hitting option for fast twist platforms that provides the expansion and accuracy we all know and love. Big Brother is the king of expanding subsonic 300 blackout.
Terminal mechanism:
Expands reliably at subsonic velocities into a wide cutting diameter.
Retains all 242 grains for deep penetration.
Produces consistent pass-throughs and devastating exit wounds.
This round requires 1:5 twist rate to stabilize, if you shoot this through a slower twist rate it could tumble and cause a baffle strike.
1:5 twist only
1:5 twist only
1:5 twist only
2 Reviews Hide Reviews Show Reviews
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The only ammo I buy
Buy with confidence. Never had any issues with this brand, great packaging and fast shipping.
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300 Blackout 220 gr. Big Brother
Awesome ammo, I’m shooting a 7 1/2” Faxon barrel, ordered the correct length ammo and velocity is exactly as advertised, std. deviation is low and accuracy is excellent. Have ordered several times.
