The Wilson Combat 300 Blackout 220 Grain ammunition features a Hollow Point Boat Tail (HPBT) projectile with brass casing for reliable performance and accuracy.Wilson Combat 300 Blackout 220 Grain HPBT20 rounds per box brass casing constructionMuzzle velocity: 1 025 FPSMuzzle energy: 513 ft-lbsHollow Point Boat Tail projectile designSKU: A300BLK220HPBTEngineered for precision shooting and hunting applications this subsonic ammunition delivers consistent ballistic performance with reduced noise signature ideal for tactical use and hunting scenarios requiring stealth and accuracy.