The DoubleTap Ammunition 10mm 180gr Jacketed Hollow Point delivers exceptional defensive performance with 1150 fps velocity and 529 ft-lbs of energy from a 5-inch barrel.DoubleTap 10mm 180gr Jacketed Hollow Point Ammunition20 rounds per boxVelocity: 1150 fps with 529 ft-lbs of energy (5" barrel)16.0" penetration depth for reliable stopping power0.75" expansion for maximum terminal effectivenessBalanced design for power and controllabilityThis premium defensive ammunition strikes the perfect balance between power and controllability enabling quick follow-up shots while delivering consistent penetration and expansion for personal protection applications.