.32 H&R Magnum
| .32 H&R Magnum | ||||||||||||||||||||||||
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.32 H&R Magnum (left) with a .38 Special (right) | ||||||||||||||||||||||||
| 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 CUP | |||||||||||||||||||||||
| Ballistic performance | ||||||||||||||||||||||||
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| Source(s): Hodgdon | ||||||||||||||||||||||||
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.
The .32 Magnum was designed to be 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.