50 Rounds of 5.56x45 Ammo by Black Hills Ammunition - 77gr OTM MK 262 Mod 1-C

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7 Review(s)

Ammo Overview

Ammo Quantity - 50 rounds per box
Ammo Manufacturer - Black Hills
Projectiles - 77 grain open tip match (OTM) MK262 Mod 1-C
Ammo Casings - Boxer-primed brass
Muzzle Velocity - 2,750 fps
Muzzle Energy - 1,293 ft lbs


Are you looking for the most accurate 5.56x45 ammunition the commercial market has to offer? Then you couldn’t have looked in a better place. We have MK 262 Mod 1-C, which Black Hills Ammunition developed to give the U.S. Navy’s Mk 12 Special Purpose Rifle an effective range of 600 yards. It is the choice ammunition of military snipers when they demand the best possible accuracy from their 5.56 firearms.

What makes this round’s trajectory so precise? Its 77 grain bullet’s superior mass translates to superior momentum retention. That bullet also happens to be the Sierra MatchKing, which possesses practically perfect jacket concentricity, a balanced lead core, and a boat tail which diminishes drag. The round also implements flash-suppressed powder that will help to conserve the shooter’s night vision. If a batch of MK 262 Mod 1-C ammo does not land sub-2” groups at 300 yards, Black Hills simply does not sell it.

MK 262 Mod 1-C ammunition is not strictly identical to the MK262 Mod 1 ammo which Black Hills supplies to the government. It is not subjected to the same degree of testing. That said, it is loaded on the same machinery, with the same components, and according to the same accuracy standards as MK262 Mod 1.

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Our customer service team has published this Q&A information as a free service to the shooting community. Please note that BulkAmmo.com expressly disclaims any and all liability with regard to how the shooting community might use this Q&A information. See Terms of Use for more details.

Posted On: 1/24/2021 By: Ken

A: No sir, this ammo will fit in a standard magazine and feed normally. You will notice the best accuracy out of a barrel with a 1:8 or 1:7 twist, but a 1:9 twist should also be serviceable.

Posted On: 4/25/2017 By: Dave

A: Hello Dave, This ammunition is loaded with a lead core, copper jacketed projectile and contains no steel. Due to the bullet construction, this ammunition will pass a magnet test.

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