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.30 Newton
Type Rifle
Place of origin Flag of the United States United States
Production history
Designer Charles Newton
Designed 1913
Specifications
Parent cartridge 11.2 Mauser (exact cartridge unknown)
Case type Rimless
Bullet diameter .308 in (7.8 mm)
Neck diameter .340 in (8.6 mm)
Shoulder diameter .491 in (12.5 mm)
Base diameter .523 in (13.3 mm)
Rim diameter .525 in (13.3 mm)
Case length 2.52 in (64 mm)
Overall length 3.35 in (85 mm)
Rifling twist 10 to 12
Primer type large rifle
Ballistic performance
Bullet weight/type Velocity Energy
150 gr (10 g) 3,208 ft/s (978 m/s) 3,445 ft·lbf (4,671 J)
172 gr (11 g) 3,000 ft/s (910 m/s) 3,440 ft·lbf (4,660 J)
225 gr (15 g) 2,610 ft/s (800 m/s) 3,470 ft·lbf (4,700 J)
Source(s): Newton Arms Company Catalog. 14th Edition: 1920. IN "Cartridges of the World" Frank C. Barnes, 3rd Edition: 1972.

The .30 Newton cartridge was designed by Charles Newton for Fred Adolph, a gunsmith, in 1913, and was originally known as the .30 Adolf Express. The Newton Arms Company was the only manufacturer of commercial rifles chambered for this cartridge. It should not be confused with the .30 Belted Newton (a.k.a. .30-338), which is a different cartridge not designed by Charles Newton. Although suitable for any large North American game, it is an obsolete round no longer manufactured. Before WWII, loaded cartridges were once offered by Western Cartridge Company. Buffalo Arms currently sells unloaded brass.

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All or a portion of this article consists of text from Wikipedia, and is therefore Creative Commons Licensed under GFDL.
The original article can be found at .30 Newton and the edit history here.
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