What bullet for Mk262?

Black Hills Mk262 Mod1 Ammunition 5.56x45mm NATO 77 Grain Sierra MatchKing Hollow Point.

What is MK 262 ammo?

Overview. 5.56 Nato MK-262 77gr HPBT New This ammo is purpose built for increased accuracy at distance with rifles or SBRs that have been paired and sighted with a high-quality optic.