The DoubleTap 9mm 124gr Jacketed Hollow Point ammunition is engineered as an exceptional personal defense load with standard pressure and velocity for reliable performance and quick follow-up shots.DoubleTap 9mm 124gr Jacketed Hollow Point Ammunition20 rounds per boxPenetrates 15 inches consistentlyExpands to .65 inches every timeStandard pressure for reliable cyclingAdvanced DoubleTap bullet designThis defensive ammunition delivers consistent terminal ballistics with predictable penetration and expansion making it an ideal choice for personal protection and law enforcement applications.