Winchester FMJ Winchester LC .223 Remington 55 gr Rifle Brass Ammunition 20 Round. 223 Remington 55 gr Rifle Brass Ammunition online at OpticsPlanet. This Winchester Ammunition features Full Metal Jacket (FMJ) bullets that deliver powerful stopping power immaculate accuracy and consistency. With premium brass cases loaded with full metal jacket (fmj) bullets. With incredible savings on Ammunition and other top-tier rifle ammo from trusted brands like Winchester you re sure to find the best round for your next hunting trip or range visit. Stock up today to save big on ammo and other top-tier tactical hunting and outdoor gear at OpticsPlanet. Specifications for Winchester FMJ Winchester LC .223 Remington 55 gr Rifle Brass Ammunition: Manufacturer: Winchester Caliber: .223 Remington Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 55 grain Cartridge Case Material: Brass Package Contents: Winchester FMJ Winchester LC .223 Remington 55 gr Rifle Brass Ammunition Winchester U223HP55: FMJ Winchester LC .223 Remington 55 gr Rifle Brass Ammunition 20 Round