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The Winchester Company introduced the first WSL (Winchester Self-Loading) cartridge in
1905 for the Winchester Model 1905 SL rifle. SL= Self-loading or Semi-Auto.
The first cartridge was the 35 WSL (.35" diameter projectile) and the second was the .32
WSL (.32" diameter projectile) in 1906 for small to mid-size game.
The 32WSL cartridge was the prototype for the famous U.S. Military  30 Carbine cartridge.
Both the 32WSL & 35WSL were  under-powered for big game and the Winchester Model
1905 SL rifle was discontinued in 1920; however, the cartridges were produced until app.
mid-1950s ?
.
.
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Remington
.
.
Winchester
United States
Cartridge Co.
$ 4.75 per Cartridge
.
$ 3.75 per Cartridge
.
$ 4.75 per Cartridge
.
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.
Winchester's .32WSL
Cartridge
.
.32 Winchester
Self-Loading
produced by
Remington Arms
Company.
With nickel primer
and older
"REM-UMC"
Head Stamp. after
Remington bought
UMC: Union
Metallic Company.
Copper Soft Point
.32 Winchester
Self-Loading
produced by
Winchester Repeating
Arms Company.
With a
"
W.R.A. CO."
Head Stamp
With "W" on Copper
Primer..
Nickel Colored Finish
on projectle with "W"
on Projectile
"LIMIT ONE"
.32 Winchester
Self-Loading produced
by  United States
Cartridge Company.
With a  "U.S.C. CO."
Head Stamp
With "U" of a "S" on
a Copper Primer.
Nickel Colored Finish
on projectle on the
Projectile
"LIMIT ONE"
,
,
,
Out of Stock,
SEE MORE BELOW
.