One Cartridge, not a box: .300 ACC Blackout,SUBSONIC by Sellier & Bellot of the Czech Republic factory produced using new S&B brass cases with “S&B .300 AACBLK” Head-Stamp and loaded with a 200 grain FMJ (Full Metal Jacket) projectile.
History of the .300 AAC* Blackout Cartridge:
The .300 AAC* Blackout cartridge was introduced in 2011, after it was approved by SAAMI and developed by the Advanced Armament Corporation =*AAC system to launch .30 caliber projectiles from the AR platform without a reduction in magazine capacity and compatible with the standard bolt.
The .300 AAC Blackout has become very popular as a sub-sonic AR caliber with good knock down power at sub-sonic speeds. 220 grain projectiles moving at 1036 feet per second producing over 500 foot pound of energy per inch.T
his cartridge is now used in military and law enforcement agencies in many countries
