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The Winchester Company introduced the 351 WSL in 1907 for the Model 1907 SL rifle.
Please note, again: SL = Self-Loading or Semi-Auto. The 351WSL was more powerful then the 35 WSL, which was not suitible for deer-sized
game, and the rifle was discontinued in 1920; however, as with the other WSL cartridges, the 351 was produced until app. mid-1950s.
Below are 4 different Head Stamps
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Winchester
Full Metal Jacket
$4.75 per Cartridge
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United States Cartridge Company
$4.75 per Cartridge
Jacketed Soft Point
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.351 Winchester Self- Loading produced by
Winchester Repeating Arms Company.
With a  "
WRA" Head Stamp, and nickel primer with purple sealant.
180 grain Projectiles
Winchester Model 1907 SL Rifle
Chambered in the 351 WSL Cartridge
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.351 Winchester Self-Loading, produced by United States
Cartridge Company. With a "U.S.C.CO."
Head Stamp, with "U" of "S" on a Copper Primer.
Nickel colored finish on the Soft Point Projectile
Limit 1
Cartridge
Limit 1
Cartridge
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351 W.S.L. Winchester Self-Loading
Freshly Loaded ! 2014 New Production Made from "NEW" Brass!
Now you can shoot that Model 1907 Rifle again!180 grain RN projectile,
RELOADABLE! (GO HUNTING!)
With 180 Grain Jacketed Soft Point Projectiles
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20 per Pack: $49.95 (40 Max.)
Maximum order on above is 40 cartridges
orders for more then 40 cartridges
will have to be canceled
 
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Western Cartridge Company
Older: 351 Winchester Self-Loading, produced by
Western Cartridge Company. "WESTERN" H/S, Nickel Primer with
ligh tred sealant,and Copper Jacketed Soft Point projectile.
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$4.75 per Cartridge
Jacketed Soft Point
Limit 1 Cartridge
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Winchester's 351 WSL Cartridges