A benchrest accuracy cartridge formed by necking the 6mm BR Norma case down to .224 caliber, developed by the competitive benchrest community in the 1970s. Delivers the BR case's exceptional shot-to-shot consistency and low extreme spread in a .22-caliber platform optimized for 600-yard competition. Custom-chambered only — no major manufacturer offers it as a standard catalog item.
Type: Centerfire Rifle
Introduced: 1975, United States
Parent case: 6mm BR Norma
Bullet diameter: 0.224" (5.6896 mm)
Primary use: Competition
Production status: active
Also known as: 22 BR Norma · .22 BR Norma