Doubletap Ammunition .223 Remington 55 Grain Lead Free SC-HP Brass Cased Rifle Ammo 20 Rounds. This is an ideal loading for self defense as well as hunting game such as deer and hogs. 22in of penetration combined with 100percent weight retention really make this one of the best defensive options for you. Specifications for Doubletap Ammunition .223 Remington 55 Grain Lead Free SC-HP Brass Cased Rifle Ammunition: Manufacturer: Doubletap Ammunition Caliber: .223 Remington Number of Rounds: 20 Bullet Type: Solid Copper Hollow Point (SCHP) Bullet Weight: 55 grain Cartridge Case Material: Brass Application: Deer Antelope Package Type: Box Primer Style: Centerfire Lead Free: Yes Package Contents: Doubletap Ammunition .223 Remington 55 Grain Lead Free SC-HP Brass Cased Rifle Ammunition What is Doubletap Ammunition .223 Remington 55 Grain Lead Free SC-HP Brass Cased Rifle Ammunition good for? The manufacturer thinks that it is best for antelope deer.Doubletap Ammunition 223R55X: .223 Remington 55 Grain Lead Free SC-HP Brass Cased Rifle Ammo 20 Rounds