Remington's short-action 7mm magnum. Gaining renewed traction in PRS competition post-2022 as shooters seek short-action alternatives to 7mm PRC.
Type: Rifle
Introduced: 2002, United States
Parent case: .300 Remington Ultra Magnum
Standardization: SAAMI
Bullet diameter: 0.284" (7.21 mm)
Case length: 2.035" (51.69 mm)
Overall length: 2.825" (71.76 mm)
Max pressure: 65,000 PSI
Rim type: Rebated
Primer: Large Rifle Magnum
Typical twist rate: 1:9
Muzzle velocity: 2900–3100 fps
Muzzle energy: 2613–3736 ft-lbs
Effective range: 700 yd
Common bullet weights: 140, 150, 160, 175 gr
Primary use: Hunting, Competition, Long Range
Production status: Active
Also known as: 7mm Remington Short Action Ultra Mag · 7mm RSAUM
History: Introduced by Remington in 2002 as part of their Short Action Ultra Mag family. Largely overlooked during the .30-caliber and 6.5mm precision rifle era. The 2022 PRS scene's enthusiasm for 7mm bullets (driven by the 7mm PRC launch) created renewed interest in the 7mm SAUM as a short-action alternative.
Notable firearms: Remington Model 700 Short Action, Browning X-Bolt
Similar cartridges: 7mm WSM, 7mm PRC, 7mm Remington Magnum