.30 Remington AR

.30 RAR (.30 Remington AR)
Size comparison with .223
TypeRifle, Centerfire
Place of originUnited States
Production history
Designed2008
ManufacturerRemington
Produced2008–present
Specifications
Parent case.284 Winchester
Case typeRimless, bottleneck
Base diameter.500 in (12.7 mm)
Rim diameter.492 in (12.5 mm)
Rim thickness.054 in (1.4 mm)
Case length1.53 in (39 mm)
Overall length2.26 in (57 mm)
Case capacity44 gr H2O (2.9 cm3)
Rifling twist1:10
Primer typeLarge rifle
Maximum pressure55,000 psi (380 MPa)
Ballistic performance
Bullet mass/type Velocity Energy
125 gr (8 g) Corelokt 2,800 ft/s (850 m/s) 2,176 ft⋅lbf (2,950 J)
125 gr (8 g) AccuTip BT 2,800 ft/s (850 m/s) 2,176 ft⋅lbf (2,950 J)
Test barrel length: 24
Source(s): http://accurateshooter.wordpress.com/2008/10/15/remington-introduces-new-30-remington-ar-cartridge/

The .30 Remington AR / 7x39mm Remington AR is an intermediate cartridge created in 2008 by Remington Arms to fill a perceived gap in performance on large game between the .223 Remington and larger cartridges such as the .308 Winchester.[1] The design of the cartridge is considered a joint effort between companies under the "Freedom Group" name through a private equity firm[1] and included such companies as Bushmaster, DPMS and Remington itself. It is a rebated rim cartridge designed to fit Remington's R-15 semiautomatic hunting rifle. It was made to fit the dimensional constraints of the AR-15 magazine and is based on a modification of the .450 Bushmaster, which in turn is based on the .284 Winchester.[2]

Remington was the only company that manufactured this ammunition and its components.[3] The cartridge was a commercial failure and has been discontinued by Remington.

The .30 Remington AR cartridge has a significantly wider diameter than the .223 Remington
  1. ^ a b Nischalke, Mike "The R-15 And The .30 RAR", Shooting Times, Online Article, accessed 13 January 2010
  2. ^ Sweeney, Patrick (2010). The Gun Digest Book of The AR-15. Iola, Wisconsin: Gun Digest Books. pp. 174–175. ISBN 978-1-4402-1622-0.
  3. ^ Mann, Richard A. (2014). GunDigest Shooter's Guide to the AR-15. Iola, Wisconsin: Krause Publications. pp. 66–67. ISBN 978-1-4402-3847-5.