Mk 262 77-grain 5.56mm ammunition - No need for 6.8 / 6.5 or 7.62M43

[Kunal Biswas]

Mk 262 77-grain 5.56mm ammunition

Test of the 5.56mm NATO MK 262 Mod 1 77 gr OTM from Black Hills. The MK262 Mod 1 is topped by a Sierra MatchKing bullet, and is an active-duty military cartridge. Test shot at 100 yards using clear gel from ClearBallistics.com. Video includes review of the cartridge, test shot, and some close-up views of the clear block.

The Mk 262 is a match quality round manufactured by Black Hills Ammunition made originally for the Special Purpose Rifle (SPR). It uses a 77-grain (5.0 g) Sierra MatchKing bullet that is more effective at longer ranges than the standard issue M855 round.

Two versions of the round have been procured to date. Initial production runs, designated Mark 262 Mod 0, lacked a cannelure. Subsequent production, designated Mk 262 Mod 1, added a cannelure to the bullet for effective crimping.

According to US DoD sources, the Mk 262 round is capable of making kills at 700 meters. Ballistics tests found that the round caused "consistent initial yaw in soft tissue" at more than 300 meters. Apparently it is superior to the standard M855 round when fired from an M4 or M16 rifle. It evidently possesses superior stopping power, and can allow for engagements to be extended to up to 700 meters when fired from an 18 inch barrel. It appears that this round can drastically improve the performance of any AR15 platform weapon chambered to .223/5.56 mm. Superior accuracy, wounding capacity, stopping power and range power has made this the preferred round of many Special Forces operators..

 

[Kunal Biswas]

Re: Mk 262 77-grain 5.56mm ammunition - No need for 6.8 / 6.5 or 7.62M

We can use it easily on INSAS ..

Presently we use 64gran OFB ammo which is heavier than most NATO rounds..