.32 H&R Magnum
.32 H&R Magnum (center) in comparison with .32 Smith & Wesson Long and 7.62x38R Nagant
Type Revolver
Place of origin USA
Production history
Designer H&R / Federal
Designed 1982
Manufacturer Federal
Produced 1983-Present
Parent case .32 S&W Long
Case type Rimmed, straight-walled
Bullet diameter .312 in (Bad rounding hereScript error mm)
Neck diameter .337 in (Bad rounding hereScript error mm)
Base diameter .337 in (Bad rounding hereScript error mm)
Rim diameter .375 in (Bad rounding hereScript error mm)
Rim thickness .055 in (Bad rounding hereScript error mm)
Case length 1.075 in (Bad rounding hereScript error mm)
Overall length 1.350 in (Bad rounding hereScript error mm)
Primer type Small Pistol
Ballistic performance
Bullet weight/type Velocity Energy
77 gr (Bad rounding hereScript error g) Cast LFP998 ft/s (Bad rounding hereScript error m/s)170 ft·lbf (Bad rounding hereScript error J)
85 gr (Bad rounding hereScript error g) HP1,263 ft/s (Bad rounding hereScript error m/s)301 ft·lbf (Bad rounding hereScript error J)
90 gr (Bad rounding hereScript error g) LSWC963 ft/s (Bad rounding hereScript error m/s)185 ft·lbf (Bad rounding hereScript error J)
90 gr (Bad rounding hereScript error g) JHP1,227 ft/s (Bad rounding hereScript error m/s)301 ft·lbf (Bad rounding hereScript error J)
100 gr (Bad rounding hereScript error g) JHP1,208 ft/s (Bad rounding hereScript error m/s)324 ft·lbf (Bad rounding hereScript error J)
Source(s): Hodgdon [1]

The .32 H&R Magnum is a rimmed cartridge designed for use in revolvers. It was developed in 1984 as a joint venture between Harrington & Richardson and Federal Cartridge.[2] The .32 H&R Magnum is produced by lengthening the .32 S&W Long case by .155", to 1.075".


The .32 H&R magnum offers substantially more performance than other .32 caliber handgun cartridges, such as the .32 ACP, and can be considered an effective small game hunting cartridge. Its higher velocity[3] offers a flat trajectory, while the light weight of the bullets results in low recoil. The older .32-20 Winchester was extremely popular in the Winchester lever's and Colt single actions, available at the turn of the century, for small-medium game hunting. The .32 H&R offers near duplicate performance.

One of the .32 H&R magnum's favorable attributes is that it offers .38 Special energy levels and allows a small-frame revolver to hold 6 cartridges, whereas a similarly sized revolver in .38 special would only hold 5 rounds. Penetration is also increased compared to the .38 special with bullets of the same weight.

Max pressure for the .32 H&R Mag is set at 21,000 CUP by SAAMI.[4]

The .327 Federal Magnum is based on the .32 H&R Magnum and improves performance to levels near that of the .357 Magnum.


Though the .32 H&R was not designed with a particular task in mind, it is fairly well suited to small game hunting. It is also an acceptable self defense cartridge. It is not generally considered a good "plinking" cartridge, due to high cost and poor availability of ammunition, but reloading can mitigate those issues.

Many handgun hunters use the .22 Winchester rimfire magnum with great success in hunting small to small-medium game, up to coyote in size. The .32 H&R magnum offers increased stopping power due to its heavier bullets and larger caliber, with the added bonus that the .32 H&R magnum can be reloaded for cost savings.

In 2013, Hornady introduced a .32 H&R magnum "Critical Defense" cartridge designed for self-defense. It propels a 80 grain FTX (flex tip), bullet at 1,150 fps muzzle velocity.[5] Buffalo Bore offers +P rated cartridges with either a 100 gr JHP or a 130 gr. Keith Hard Case SWC bullets. (Buffalo Bore says not to use any +P rated cartridges in original H&R revolvers.)[6]

Since the .32 H&R Magnum headspaces on the rim and shares the rim dimensions and case and bullet diameters of the shorter .32 S&W and .32 S&W Long cartridges, these shorter cartridges may be fired in arms chambered for the .32 H&R Magnum. Longer cartridges are unsafe in short chambers, so more powerful .32 H&R Magnum cartridges should never be loaded into arms designed for the .32 S&W or .32 S&W Long.[7]

Firearms chambered for the .32 H&R MagnumEdit


In addition to Harrington & Richards, other manufacturers who have offered revolvers in .32 magnum include Charter Arms, Freedom Arms, Smith & Wesson, Ruger, and Taurus.

American Derringer, Bond Arms, and Cobra Firearms offer derringers in .32 magnum. Thompson Center Arms offered their Contender pistol in it as well.


Marlin once offered their Model 1894 lever action rifle in .32 magnum.

See alsoEdit


  1. .32 H&R Mag data at Hodgdon
  2. .32 H&R Magnum at the Reload Bench
  3. Ballistics By The Inch .32H&R results.
  4. .32 H&R Magnum data from Accurate Powder
  5. Hornady .32 H&R Magnum 80gr FTX Critical Defense
  6. "Buffalo Bore .32 H&R Magnum"
  7. Treakle, John W. American Rifleman (May 2011) p.42

External linksEdit

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