.32 H&R Magnum
Introduced 1984Harrington & Richardson and Federal Premium AmmunitionCIP standard
Dimensions and pressure
Generated from the schema, like every specification table on this site, so a figure recorded on this entry cannot be missing from the table.
Identity
- Designed by
- Harrington & Richardson and Federal Premium Ammunition
- Introduced
- 1984
- Production
- not recorded
- Standards body
- C.I.P.
- Case type
- Rimmed
- Case shape
- Straight
Dimensions
- Bullet diameter
- 7.92 mm0.3118 inestimated
Converted from .312 in, Wikipedia infobox.
- Bore diameter
- not recorded
- Case length
- 27.31 mm1.075 inestimated
Converted from 1.075 in, Wikipedia infobox. The C.I.P. datasheet for this round publishes only its maximum pressure, not its dimensions.
- Overall length
- 34.29 mm1.350 inestimated
Converted from 1.350 in, Wikipedia infobox.
- Rim diameter
- 9.53 mm0.3752 inestimated
Converted from .375 in, Wikipedia infobox.
- Neck diameter
- 8.56 mm0.3370 inestimated
Converted from .337 in, Wikipedia infobox.
- Base diameter
- 8.56 mm0.3370 inestimated
Converted from .337 in, Wikipedia infobox.
Pressure
- Maximum pressure
- 140 MPa20,305 psisource
Pmax 1400 bar, C.I.P. method.
- Pressure standard
- C.I.P.
SAAMI and C.I.P. measure pressure differently and their figures are not interchangeable, which is why the body is always named beside the figure.
Loads
Velocity is recorded per barrel length as published. A gun page interpolates between these points and never projects beyond them.
85 gr HP
- Bullet mass
- 5.51 g85.03 grestimated
85 gr bullet, from a handloading data page (Hodgdon), via the Wikipedia infobox. The published velocity on that page is a maximum-handload result tied to a specific powder charge, not a factory-ammunition figure, so it is not recorded.
- Cartridge mass
- not recorded
- Bullet type
- HP
- G1 BC
- not recorded
- G7 BC
- not recorded
100 gr JHP
- Bullet mass
- 6.48 g100.0 grestimated
100 gr bullet, from the same handloading data page, via the Wikipedia infobox. Velocity not recorded for the same reason.
- Cartridge mass
- not recorded
- Bullet type
- JHP
- G1 BC
- not recorded
- G7 BC
- not recorded
Chambered in
Computed from every entry that lists this cartridge. Nothing here is hand-maintained.
No entry on the site is chambered in it yet.
Gallery
Image credit
- Title
- File:32caliberhandguncartridgecomparison.png
- Author
- Burmiester(attribution required)
- Licence
- CC BY-SA 4.0
- Source
- https://commons.wikimedia.org/wiki/File:32caliberhandguncartridgecomparison.png
Detail
The .32 H&R Magnum is a rimmed, straight-walled revolver cartridge Harrington & Richardson and Federal Premium Ammunition introduced jointly in 1984, based on a lengthened .32 S&W Long case. It was designed to give more than twice the velocity and energy of the .32 S&W Long, and it runs at a higher maximum pressure than the .38 Special.
It has been chambered in revolvers from Harrington & Richardson, Ruger, Smith & Wesson and others, and Federal later lengthened the case further into the .327 Federal Magnum, a still higher-pressure cartridge sharing the same bullet diameter.
C.I.P.’s published datasheet for this round gives only its maximum pressure, which is recorded as verified; C.I.P. does not publish the cartridge’s other dimensions on that sheet, so case, overall and diameter figures are converted from Wikipedia’s infobox and recorded as estimated. Two bullet weights are recorded from a handloading data page cited by the same infobox, but that page’s published velocities are maximum-handload results tied to a specific powder charge rather than factory-ammunition figures, so no velocity or energy is recorded for this cartridge. No photograph of a revolver chambered for it appears on this site.
References
- .32 H&R Magnum · 1372403204 · read 2026-09-24
- C.I.P. TDCC datasheet — 32 H&R Mag. · 2000-06-07 · read 2026-09-24
Last verified 2026-09-24 · review status: agent-populated