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.32 Winchester Self-Loading
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Type Rifle
Place of origin USA
Production history
Designer Winchester Repeating Arms Company
Specifications
Bullet diameter .321 in (Bad rounding hereScript error mm)
Neck diameter .347 in (Bad rounding hereScript error mm)
Base diameter .349 in (Bad rounding hereScript error mm)
Rim diameter .390 in (Bad rounding hereScript error mm)
Rim thickness 0.05 in (Bad rounding hereScript error mm)
Case length 1.24 in (Bad rounding hereScript error mm)
Overall length 1.88 in (Bad rounding hereScript error mm)
Primer type Small rifle
Maximum pressure 28000 to 30000 PSI
Ballistic performance
Bullet weight/type Velocity Energy
165 gr (Bad rounding hereScript error g) 1,392 ft/s (Bad rounding hereScript error m/s)710 ft·lbf (Bad rounding hereScript error J)
Test barrel length: 22
Source(s): Whelen, Townsend. The American Rifle. Century Co. 1918 p. 257

The .32 Winchester Self-Loading (also called .32SL, .32SLR, or .32WSL) is an American rifle cartridge.

Winchester introduced the .32SL and .35SL cartridges in the Winchester '05 self-loading rifle, a centerfire version of the Winchester '03. The .32SL never gained popularity as a hunting cartridge, although it may be suitable for the largest small game such as fox and coyote at ranges under 150 yards.[1] Both the .32SL and .35SL were soon superseded by the introduction of the more powerful .351SL in the Winchester '07.[2]

When first introduced however, the notable firearm expert Townsend Whelen noted the .32SL cartridge as displaying similar ballistics as the .32-40 Winchester black powder, low-pressure cartridge.[3] He further suggests the best use of the .32 SL as being for rapid-fire target shooting for ranges up to 300 yards. Within such ranges, it is quite an accurate cartridge.

In October 1940. an Army Ordnance circular suggested development of a light rifle using a .30 caliber cartridge similar to the "Winchester Self-loading Cartridge, Caliber .32" to replace the pistol and submachine gun. This led to the production of the "Caliber .30 SL, M1" cartridge directly based on the .32 SL in February 1941 and, after a design competition, adoption of the Winchester-designed M1 carbine in October 1941.[4]

See alsoEdit

ReferencesEdit

  1. Whelen, Townsend (1918) The American Rifle Century Co. p. 257.
  2. Stebbins, Henry (1958) Rifles: A Modern Encyclopedia Stackpole Books, p. 127
  3. Whelen, Townsend (1918) The American Rifle Century Co. p. 257
  4. Larry Ruth, M1 Carbine: Design Development and Production, The Gun Room Press, 1979.


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