ADI World Class Ammunition Match, Sierra HPBT MatchKing, .223 Remington, 69 Grain, Brass Cased, 20 Round Box ADI9332153003289 With uncompromising quality and attention to detail, ADI World Class ammunition is built on over 130 years of experience in propellant and ammunition design. ADI is trusted by the worlds most discerning Marksman. Designed for service rifle competition in M16A2/AR15-A2, the Sierra MatchKing bullets have set an incredible number of new national records. This projectile is well known for its excellent accuracy at 200-300 yards. MatchKing bullets give you the opportunity to squeeze every bit of accuracy out of your firearm. However, even with its pinpoint accuracy it is not recommend hunting with MatchKing bullets.