Name: .223 Remington (5.56mm NATO)
Rim Height: .045
Stem Height: .075
Bevel Height: .140
Body Height: 1.438
Shoulder Height: 1.557
Neck Height: 1.760
Cartridge Length: 2.260
Rim Width: .378
Stem Width: .332
Body Width: .376
Shoulder Width: .354
Neck Width: .253
Top Width: .253
Short Name: 223 Rem
Bullet Diameter: .223
Rifling Grooves: 6
Rifling Twist: 12
Case Capacity: 31
Bullet Weight: 55
Bullet Velocity: 3240
Muzzle Energy: 1282