.35 Winchester Self-Loading
From left to right: .35 Winchester Self-Loading, .351 Winchester Self-Loading, .45 ACP
Type Rifle
Place of origin USA
Production history
Designer Winchester Repeating Arms Company
Bullet diameter .351 in (Bad rounding hereScript error mm)
Neck diameter .377 in (Bad rounding hereScript error mm)
Base diameter .381 in (Bad rounding hereScript error mm)
Rim diameter .405 in (Bad rounding hereScript error mm)
Rim thickness 0.05 in (Bad rounding hereScript error mm)
Case length 1.154 in (Bad rounding hereScript error mm)
Overall length 1.65 in (Bad rounding hereScript error mm)
Rifling twist 1 in 16
Primer type Small rifle
Ballistic performance
Bullet weight/type Velocity Energy
180 gr (Bad rounding hereScript error g) 1,396 ft/s (Bad rounding hereScript error m/s)779 ft·lbf (Bad rounding hereScript error J)
Test barrel length: 22

The .35 Winchester Self-Loading (also called .35SL, .35SLR, or .35WSL) is an American rifle cartridge.

Winchester introduced the .32SL and .35SL in the Winchester '05 self-loading rifle as a centerfire cartridge version of the Winchester '03. The .35SL proved popular at first with the general public as a short-range deer and black bear hunting cartridge, but was soon superseded by the introduction of the more powerful .351SL in the Winchester '07.[1]

Many now consider the .35SL inadequate as a deer round, but it may still be suitable for coyote or similar medium-sized game at close ranges. When first introduced however, the notable firearm expert Townsend Whelen noted the .35SL cartridge as displaying similar ballistics as the .38-40 black powder, low-pressure cartridge.[2]

See alsoEdit


  1. Stebbins, Henry (1958) Rifles: A Modern Encyclopedia Stackpole Books, p. 127
  2. Whelen, Townsend (1918) The American Rifle Century Co. p. 266

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