The 30 caliber 125 grain HP MatchKing is uniquely designed flat based bullet was designed in conjunction with AAC (Advanced Armament Corporation) and Remington Arms for the new .300 AAC Blackout cartridge designed for the AR platform. This bullet has also proven to be exceptionally accurate in bolt action rifles and other .30 caliber AR chamberings. The jacket was specifically designed to handle velocities ranging up through common .30 caliber midlevel cartridges. The #2121 became available for sale in January 2012.

Bullet Type	MatchKing
Weight (grains)	125
Sectional Density	0.188
Ballistic Coefficients and Velocity Ranges	.349 @ 2650 fps and above .338 between 2000 and 2650 fps .330 between 1600 and 2000 .310 @ 1600 fps and below