.30 caliber / 7.62mm (.308) 125 gr. HP MatchKing

Sierra MatchKing BulletsThe 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
0.308 125 .188 .349 @ 2650 fps and above
.338 between 2000 and 2650 fps
.330 between 1600 and 2000
.310 @ 1600 fps and below

Price: $41.53
Stock Code: 2121
100 bullets
To order by phone, please call 1-888-223-3006

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Price: $203.54
Stock Code: 2121C
500 bullets
*Sierra Bullets does not sell any loaded ammunition. What you are purchasing are bullets only and will need to be loaded into ammunition in order to be fired from a firearm. Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

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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).
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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.
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Bob Z of Sun City, Arizona November 19, 2013
The "Go To" Bullet for 300BLK
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David M of Wichita Falls, Texas August 15, 2013
Works very well in the AAC 300 Blackout.
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