What is a 204 caliber?
What is a 204 caliber? 204 Ruger was the second highest velocity commercially produced ammunition and the only centerfire cartridge produced commercially for bullets of . 204 inch/5 mm caliber…. .204 Ruger Parent case .222 Remington Magnum Case type Rimless, bottleneck Bullet diameter .204 in (5.2 mm) Neck diameter .2311 in (5.87 mm) What is […]