.327 Federal Magnum | ||||||||||||||||||||
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![]() .327 Federal Magnum (left) with a .357 Magnum (right) | ||||||||||||||||||||
Type | Revolver | |||||||||||||||||||
Place of origin | United States | |||||||||||||||||||
Production history | ||||||||||||||||||||
Designer | Federal Premium Ammunition and Sturm, Ruger & Co. | |||||||||||||||||||
Designed | 2007 | |||||||||||||||||||
Produced | 2008–present | |||||||||||||||||||
Specifications | ||||||||||||||||||||
Parent case | .32 H&R Magnum | |||||||||||||||||||
Case type | Rimmed, straight | |||||||||||||||||||
Bullet diameter | .312 in (7.9 mm) | |||||||||||||||||||
Neck diameter | .337 in (8.6 mm) | |||||||||||||||||||
Base diameter | .337 in (8.6 mm) | |||||||||||||||||||
Rim diameter | .375 in (9.5 mm) | |||||||||||||||||||
Rim thickness | .055 in (1.4 mm) | |||||||||||||||||||
Case length | 1.20 in (30 mm) | |||||||||||||||||||
Overall length | 1.47 in (37 mm) | |||||||||||||||||||
Primer type | Small pistol magnum | |||||||||||||||||||
Maximum pressure | 45,000 psi (310 MPa) | |||||||||||||||||||
Ballistic performance | ||||||||||||||||||||
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Test barrel length: 3 1/16 in, * 51⁄2" Blackhawk Revolver Source(s): Outdoor Writers[1] * Ballistics by the inch[2] |
The .327 Federal Magnum is a cartridge introduced by Federal Premium Ammunition and also sold by Sturm, Ruger & Co. It is intended to provide the power of a .357 Magnum in six-shot, compact revolvers, whose cylinders would otherwise only hold five rounds. The .327 has also been used in full-sized revolvers with a capacity of seven rounds or more. The .327 Federal Mag is an example of a "super magnum", because it is a magnum of a magnum, the .32 H&R Magnum.[3]
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