.30 caliber / 7.62mm (.308) 125 gr. HP MatchKing
The 30 caliber 125 grain HP MatchKing® is uniquely designed flat based bullet was designed in conjunction with AAC (Advance Armament Corporation) and Remington Arms for the .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.
While they are recognized around the world for record-setting accuracy, MatchKing® and Tipped MatchKing® bullets are not recommended for most hunting applications. Although MatchKing® and Tipped MatchKing® bullets are commonly used for varmint hunting, their design will not provide the same reliable explosive expansion at equivalent velocities in varmints compared to their lightly jacketed Hornet, Blitz or Varminter counterparts.
View Sierra Bullet’s 300 AAC Blackout Load Data
The #2121 became available for sale in January 2012.
|Dia. (inches)||Weight (grains)||Sectional Density||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
To order by phone, please call 1-888-223-3006
||Tyson S of Sidney, Montana||April 23, 2017|
|These are stupendously accurate in my Rem 700 308 Win out to about 300 yards. I load them for my wife with a case-full of IMR-4320, estimated recoil in a 12 lb rifle is only 7ft/lbs. Fun to shoot, very accurate!|
||Alexander g P of norwalk, Ohio||March 6, 2016|
|Best 300 blk bullet.|
||Kevin R of Ashburn, Virginia||November 25, 2014|
|Over 500 rounds for 300 Blackout. I have used this in (3) different rifles. All with 1:7 twist rate and barrel lengths from 9 - 16". I follow the recommended loading specs from the Sierra manual for H110 (18.3 grains / 2.210 COAL).|
||Lou A of Margaretville, New York||September 17, 2014|
|iam shooting these bullets out of my rem. 40x hart barrel. H-benchmark powder. 5 shots one hole at 100 yards. low recoil. my turkey shoot load. gonna clean up this year.|
||Bob Z of Sun City, Arizona||November 19, 2013|
|The "Go To" Bullet for 300BLK|
||David M of Wichita Falls, Texas||August 15, 2013|
|Works very well in the AAC 300 Blackout.|