5.56x45mm – 77 gr OTM – Black Hills (D556N9) – 500 Rounds

Looking for competition ammo for your AR-15? These Black Hills Ammo D556N9 5.56X45mm, 77-grain OTM, are what you’ve been searching for! Based on the ballistics of their MK262 Mod 1-C (the difference is a Hornady projectile versus a Sierra projectile), this round was made by Black Hills Ammunition of South Dakota, which only produces high-quality ammo.

D556N9 is a 5.56x45mm cartridge loaded with 77-grain open-tip match (OTM) bullets and is designed for accuracy and long-range performance. This round is based on a version of the MK262 cartridge, optimized for use in M4 Carbine rifles. This Black Hills 77gr OTM bulk ammunition is considered to be one of the most accurate types of 5.56mm ammo.

Jeff Hoffman, the owner of Black Hills Ammo, talked about this ammo in an interview with Shooting Time back in 2012, saying: “The round developed a cult following, even packed as cosmetic seconds. So last year we started offering it to the public. The only difference is the packaging-it is the exact same ammunition as is delivered to the U.S. military-loaded to the exact same specs. The guy shooting iron sights at beer cans at 100 yards probably has no reason to shoot this, but a man that has the skill and firearm to extend the range, this is his round.”

D556N9 Ballistics – Velocity from 20″ test barrel:

• Muzzle Velocity – 2750 fps
• Muzzle Energy – 1293 ft-lbs

The thin jackets of these bullets are kept to tight standards for weight and diameter, making them incredibly accurate. More target contests have been won with their precision than with any other manufacturer’s target bullets combined. The smallest meplat feasible is used into the design of every OTM bullet to obtain the best ballistic coefficient.

Over the years, Black Hills Ammo has acquired some of the most renowned private and military customers in the world; this wasn’t by chance. Order your 500 D556N9 rounds right away!