.32 H&R Magnum
US rimmed revolver cartridge / From Wikipedia, the free encyclopedia
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The .32 H&R Magnum, also known as the .32 Magnum, is a rimmed cartridge designed for use in revolvers. It was developed and introduced in 1984 as a joint venture between Harrington & Richardson and Federal Premium Ammunition.
Quick Facts Type, Place of origin ...
.32 H&R Magnum | ||||||||||||||||||||||||
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Type | Revolver | |||||||||||||||||||||||
Place of origin | USA | |||||||||||||||||||||||
Production history | ||||||||||||||||||||||||
Designer | Harrington & Richardson Federal Premium Ammunition | |||||||||||||||||||||||
Designed | 1984 | |||||||||||||||||||||||
Manufacturer | Federal | |||||||||||||||||||||||
Produced | 1984–present | |||||||||||||||||||||||
Specifications | ||||||||||||||||||||||||
Parent case | .32 S&W Long | |||||||||||||||||||||||
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 | 1.075 in (27.3 mm) | |||||||||||||||||||||||
Overall length | 1.350 in (34.3 mm) | |||||||||||||||||||||||
Primer type | Small pistol | |||||||||||||||||||||||
Maximum pressure | 21,000 psi (140 MPa) | |||||||||||||||||||||||
Maximum CUP | 21,000[1] CUP | |||||||||||||||||||||||
Ballistic performance | ||||||||||||||||||||||||
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Source(s): Hodgdon[2] |
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The .32 Magnum was designed to more than double the speed and energy of the less powerful .32 Smith & Wesson Long cartridge, on which it is based. Loadings for the .32 H&R Magnum even typically exceed hot .38 Special +P loads in terms of both speed and energy. The .32 Magnum also has a higher maximum pressure than the .38 Special.[3]