Barrel Nut Required, not included with barrel. OR should I go for a 1-9 twist to handle 50 to 65 gr in a 24 inch barrel. 220 Swift (.256") 220 Swift 40 deg. Shipping and handling. Shipped with USPS Parcel Select Ground. (.256") 220 Swift. No Shipping outside the US Condition is "Used". Ruger M77 Mark II Standard 220 Swift, Blued, American Walnut M7. These barrels still require the use of a factory barrel nut, or a non-factory barrel nut utilizing factory/OEM dimensions. .220 Swift Barrel Life I am shooting 50 gr. My question is that twist OK for the grain weight, and is the barrel length OK or would a 26 inch barrel be more accurate. https://tacticalordnance.com/product/ar-10-220-swift-ev-5-barrels Rifles with barrels of both standard and heavy weights were offered, and to make sure the .220 Swift ran at top speed, all barrels were 26 inches long. If you have enough fun to shoot out a Swift barrel, just rebarrel it. Barrels are threaded on the end for a reason. (.250") 22 Clark. 22-257 Imp. (.256") 22-6mm Ackley Imp. Call Us Today! OUT OF STOCK (0) Loadbooks .220 Swift Each. However, a couple of factors have substantially increased barrel life in .220 Swift rifles in recent years though. 220 Swift Rifle Cartridge by Nosler Inc. TECHNICAL INFORMATION: The 220 Swift, like the .22-250, is prone to case stretching due to its shallow shoulder angle and long, tapering shape. Winchester Model 70 pre 64 220 Swift Barrel - Made In 1939. It was the first factory-loaded rifle cartridge with a muzzle velocity of over 1,200 m/s (4,000 ft/s). My idea is to have a 1-12 twist in a 24 inch barrel, shooting 50 to 60gr bullets. OUT OF STOCK (2) Ruger 1V VARMNT 220SWFT 24 … (.255") 22-243 Win. OUT OF STOCK (0) Hornady LNL 220 SWIFT MODIFIED CASE. But modern metallurgy and cryogenics have vastly improved barrel life with the .220 Swift and … Sierra Blitzkings right at 4000fps. OUT OF STOCK (4) Hornady 220 Swift 55 Grain V-Max. ... 220 Swift 30 deg. The .220 Swift (5.56×56mmSR) is a semi-rimmed rifle cartridge developed by Winchester and introduced in 1935 for small game and vermin hunting. The Swift's high-velocity performance undoubtedly comes at a price, because the high velocities and high internal firing temperatures do accelerate chamber and bore wear. This item will ship to United States, but the seller has not specified shipping options. We are chambering and fitting Shilen barrels for the following cartridges. The popularity of the Swift has slipped in the last twenty years and few factory rifles are now available in this caliber. The bottom line is enjoy the .220 Swift for what it was meant to be. (.250") 22-6mm Rem. Folks, I'm having a 220 Swift built. 406-755-4907 | 4051 US Hwy 93 South, Kalispell MT 59901 | admin@mcgowenbarrel.com Something else the .220 Swift had going for it was its introduction in the Winchester Model 54, which was by far the most accurate factory rifle available at the time. 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