Depending on caliber and application hornady's black has the best bullet options are selected for each round to deliver the accuracy and performance you've come to expect from hornady.Suppressed or unsuppressed supersonic or subsonic rifle mid-length carbine or pistol hornady black has optimized offerings for superior performance in a variety of platforms.Special clean-burning propellants result in a reduced muzzle flash even in short-barreled rifles.Internal ballistics and bullet weights are optimized for accuracy and consistency.Caliber: 4.6x30mm H&KBullet Type: Hornady V MaxBullet Weight: 38 grRounds Per Box: 25Boxes Per Case: 10Application: HuntingCasing Material: BrassHazair: Yes