Model: 1907 SL. Winchester 351 For Sale Winchester 351. GunAuction.com Master List. This is a semi-automatic Winchester Model 100 Carbine, chambered in .243 Winchester. The Winchester Model 1907 is a blowback-operated, semi-automatic rifle produced by the Winchester Repeating Arms Company beginning in 1907 with production ending in 1957. Caliber, 5 or 10 Shot Magazine 58,490 Total Manufacture. Although most people only called it the “.351,” Winchester officially named it the Model 1907 SL. Likewise, the frame itself had to be sturdy. To keep the blown-back breechblock from severely damaging the Model 1907 frame it had to be heavy. Buy Winchester Model 1907 .351 Win W.S.L. Title. Winchester 1907 Semi-Automatic Rifle .351 Win. Bore is excellent. Winchester introduced the .351 WSL in 1907 for their Model 1907 Autoloading Rifle. MANUFACTURER Winchester Clear NARROW YOUR SEARCH Clear (Winchester Wikipedia Page) 1 Item(s) Found Page 1 1. Winchester introduced the .351 SL in the Winchester Model 1907 self-loading rifle as a replacement for the Winchester Model 1905 and the .35 SL.The .351 SL proved popular with police and security forces as the only chambering available in the model … In Good to Excellent Condition 100% Original..Current Value is $535...I'd say you got a he** of a deal for $100 "Investment" The Winchester Company introduced the 351 WSL in 1907 for the Model 1907 Self-loading rifle. Item. High(Bid) Time(Left) 15383000: Winchester Single Shell WRA .351 Self Loader 351 Win SL - .351 WSL BuyItNow!-0 $4.00: Out-Of-Stock 1. Instead it used a direct blowback type of function as with .22 semi-auto rifles and handguns. It was fed from a 5 or 10-round capacity, detachable box magazine located immediately forward of the trigger guard.The only cartridge offered by Winchester as a factory chambering in the Model 1907 was the .351SL centerfire. Please note, again: SL = Self-Loading or Semi-Auto. Buy 1907 Winchester 351: GunBroker is the largest seller of Semi Auto Rifles Rifles Guns & Firearms All: 889489916 History. Action works perfectly. It was given the usual Winchester flat, rectangular, and largely featureless metal receiver with a large ejection port seated along the right side of the body. Produced Between 1907-1957. The Model 1907 took on largely the same form and function of the preceding Winchester semi-automatic rifle designs. Barrel/Choke: 20" Serial Number: 30145. Manufacturer: Winchester. Bids. Self Loading Semi-Auto Rifle 1915 C&R: GunBroker is the largest seller of Curios & Relics Collectible Firearms All: 883851593 Finish: Blue. Action: Semi auto # Shots: 5+1. Model 1907. By Chuck Hawks. Caliber: .351. Winchester autoloaders of the time could not accommodate the higher pressure and back thrust of more powerful cartridges, so the .351 Self-Loading cartridge was designed for the existing Winchester action. It has 19" blued barrel with hooded front post and rear notch sights. ... "Winchester 1907 .351 (W9438) GI#: 101597599 "Winchester 1907 .351 caliber rifle. The Winchester Model 1907 is a blowback-operated, semi-automatic rifle produced by the Winchester Repeating Arms Company beginning in 1907 with production ending in 1957. It fired a cartridge of intermediate power, cycled through a semi-automatic operating mechanism, fed from a 5, 10, or 15 round detachable box magazine located immediately forward of the trigger guard. Menu.