Tipstrike ammuntion with polymer tip is developed with unparalleled stopping power and penetration deep enough to both reach and catastrophically damage vital organs of your game. The flat- base polymer tipped projectile assures a consistent, effective expansion and gives a devastating shock effect due to the construction of the bullet jacket. To maintain a high retention weight, the jacket is reinforced with a mechanical lock. Series Tipstrike Caliber 280 Rem Application Hunting Bullet Type Polymer Tip Bullet Weight 160 gr Muzzle Energy 2764 ft lbs Boxes Per Case 10 Rounds Per Box 20 Casing Material Brass Muzzle Velocity 2789 fps Unit Of Measure box