The .30 Remington AR is a rebated-rim cartridge developed by Remington for their AR-10-pattern hunting rifles. Its rebated rim matches the standard 5.56mm bolt face diameter, allowing use in the lighter AR-15-style bolt, while the larger case body delivers .30-caliber deer hunting performance. It is not interchangeable with .308 Winchester.
Type: Rifle
Introduced: 2007, USA
Standardization: SAAMI
Bullet diameter: 0.308" (7.82 mm)
Case length: 1.53" (38.86 mm)
Overall length: 2.26" (57.4 mm)
Rim type: Rebated
Primer: Large Rifle
Muzzle velocity: 2500–2800 fps
Muzzle energy: 1700–2600 ft-lbs
Effective range: 150 yd
Common bullet weights: 125, 150, 165 gr
Primary use: hunting, semi_auto
Production status: Discontinued
Also known as: .30 RAR · 30 RAR · 7.62x38.9mm Remington
History: Introduced in 2007 for the Remington R-15 and R-25 semi-automatic hunting rifles, the .30 Remington AR was Remington's attempt to create a dedicated .30-caliber hunting cartridge for the AR platform. The rebated-rim design allowed use of a modified AR-15 bolt face rather than requiring an AR-10 system, resulting in a lighter rifle. Despite SAAMI standardization, the cartridge never achieved broad…
Notable firearms: Remington Model R-15, Remington R-25
Similar cartridges: 6.8mm Remington SPC, .308 Winchester, .30-06 Springfield