Winchester Ammo Centerfire Rifle Reloading 223 Rem .224 55 Grain 100 Bullets. These characteristics vary depending on bullet design. Winchester carries a variety of component bullets for both centerfire rifle and handgun ammunition. Specifications for Winchester Ammo Centerfire Rifle Reloading 223 Rem .224 55 Grain: Manufacturer: Winchester Bullet Type: Pointed Soft Point (PSP) Caliber: .223 Remington Bullet Weight: 55 grain Projectile Caliber: .224 Caliber Diameter: 0.224 in Core Material: Lead Bullet Quantity: 100 Bullet Bullet Tip Material: Lead Fabric/Material: Copper Package Contents: Winchester Ammo Centerfire Rifle Reloading 223 Rem .224 55 Gr Pointed Soft Poin WB223SP55X Winchester WB223SP55X: Ammo Centerfire Rifle Reloading 223 Rem .224 55 Grain 100 Bullets