Precision rifle competition cartridge. Flatter, faster than 6.5 CM with less recoil than .308. Dominates PRS competitions.
Type: Rifle
Introduced: 2017, United States
Parent case: 6.5 Creedmoor
Standardization: SAAMI
Bullet diameter: 0.243" (6.17 mm)
Case length: 1.92" (48.77 mm)
Overall length: 2.825" (71.75 mm)
Max pressure: 62,000 PSI
Rim type: Rimless
Primer: Large Rifle or Small Rifle (SRP/LRP brass both exist)
Typical twist rate: 1:7.5 to 1:8
Muzzle velocity: 2875–3200 fps
Muzzle energy: 1850–2300 ft-lbs
Effective range: 1200 yd
Common bullet weights: 103, 105, 108, 112 gr
Primary use: Competition, Target, Hunting
Production status: Active
Also known as: 6mm CM · 6x48mm
History: Introduced 2017 by Hornady and GA Precision for PRS. Necked down 6.5 Creedmoor. Rapidly adopted by competitive shooters. Less recoil than 6.5 with flatter trajectory.
Notable firearms: Ruger Precision Rifle, Bergara HMR, Tikka T3x
Similar cartridges: .243 Winchester, 6.5 Creedmoor