IMI Razor Core 5.56 77gr OTM

IMI Razor Core 77-grain OTM represents Israel Military Industries' answer to the U.S. military's Mk262 Mod 1 specification, delivering match-grade performance at mid-tier pricing. This ammunition uses the same 77-grain Sierra MatchKing bullet with cannelure that's found in genuine Mk262, loaded into annealed 5.56mm NATO cases with neck and primer sealant for enhanced reliability in adverse conditions. The result is ammunition that performs as close to Mk262 as civilian shooters can get without paying premium prices for Black Hills contract overruns.

What sets IMI Razor Core apart is its velocity profile. Testing shows this load averaging over 2,700 fps from a 16-inch barrel, approximately 100 fps faster at the muzzle than Black Hills 77gr OTM. This higher velocity is achieved through IMI's proprietary ball powder formulation, which is loaded to full 5.56 NATO pressures. The increased velocity provides flatter trajectories and enhanced terminal ballistics, though at the cost of slightly increased muzzle blast and recoil compared to .223 Remington loadings.

Real-world accuracy testing demonstrates that IMI Razor Core consistently delivers sub-MOA groups from quality barrels with 1:8" or 1:7" twist rates. The crimped and lacquer-sealed primer ensures reliable ignition even after extended exposure to moisture or temperature extremes. For shooters who want Mk262-equivalent performance for training, competition, or tactical applications without paying premium prices, IMI Razor Core represents exceptional value. Just remember this is a true 5.56 NATO loading and should only be used in rifles specifically chambered for 5.56 NATO.