Temperature (°F) Maximum 140°F; Minimum -40°F. G1 Ballistic Coefficient Must be between 0.001 and 1.0. In addition to being two of the world's fastest .22-caliber centerfire cartridges, the .22-250 and .220 Swift rank among the oldest. Stevensville, MT 59870. The 220 Swift, like the .22-250, is prone to case stretching due to its shallow shoulder angle and long, tapering shape. What I'm looking for is a rifle to shoot a tight group any where from 200 to 600 yards for varmint hunting or target shooting. my new 220 swift needs to be sighted in and i am have some trouble with that. Sight Height (in) Must be a number greater than 0. Firearm Setup. Cage 1A9E5. BALLISTIC DATA – HUNTING AMMUNITIONBullet type Bullets weight g/gr Product number Ball. coeffi-cient Velocity feet per second. 220 Swift 55 gr V-MAX® Item #8324 | 20/Box . ??? There are dozens of loads for any given bullet weight in any cartridge that will produce different velocity and energy figures. Zero Range (yd) Must be a number greater than 0. Case life can be greatly increased by using a neck die, or a full-length die adjusted to partially size the case. Muzzle V100 V200 300 Energy foot pounds. Fax: 406-777- 3908 I have been told to try a 220 Swift Ackley improved with a 1 in 12 twist with a 28" barrel. Kimber's new Model 84 Varmint and Weatherby's new Super VarmintMaster are fitting vehicles for taking a close look at these classic varmint cartridges.. The following data was taken from various sources including reloading manuals and the online Ballistics Calculator provided by BigGameInfo. The Swift's ability to shoot bullets into small groups has not gone unnoticed by others, either. 4406 Rathbun Lane. at 27 yards dead on, then back off to 100 yards and shooting way high. The .220 Swift has a smaller but fervent following, yet the .22-250 Remington is undoubtedly the more popular, and maybe for reasons that include more than marketing. What are some of the advantages and disadvantages of the 220 swift and or the 220 swift Ackley improved. In spite of the larger case capacity of the .220 Swift, most modern ammunition is only 100 fps or so above that of the .22-250 Remington. what am i doing … It was the first factory-loaded rifle cartridge with a muzzle velocity of over 1,200 m/s (4,000 ft/s). By Chuck Hawks. Note: For an expanded version of this table showing more loads, including British, European, wildcat, obsolescent American and proprietary calibers, see the Expanded Rifle Trajectory Table . Muzzle E100 E200 E300 Zero ... 220 SWIFT SOFT POINT 50 1,0 1,2 0,5 -4,3 3.2 g/50 gr 0.185 4019 3394 2852 2369 1794 1279 903 623 100 -0,5 -0,3 -1,5 -7,2 1,2 5,0 12,2 .220 swift or 22-250 imp or .22-30-06 improved or 22-284 with a 1in 8 or 9 twist and 100 grain tap bullet should have almost 700fpe at 1000 yds if launched at 3500fps. 406-777-2106. Environmental Status. HSM Ammunition. Polymer tipped V-MAX ® bullets deliver match accuracy, high ballistic coefficients, wind defying trajectories, and rapid fragmentation upon contact. Gordon , Jan 2, 2003 #8 sighted dead on at 100 yards then shooting 4-6 inches low. 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. Maximum 60°C; Minimum … Years ago, Ruger factory technicians who tested rifles were required to keep accuracy records on all calibers; doing so revealed that rifles in .220 Swift had a slight accuracy edge over those in .22-250. like 6-8 inches. This stretching can result in neck thickening and premature case-head separation. Note:For an expanded version of this table showing more loads, including British, European, wildcat, proprietary and obsolescent American calibers, see the Expanded and Improved Rifle Ballistics Table. 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