220 Swift Ammo
The 220 Swift Ammo remains the fastest production cartridge ever made. It dates back to 1935 when Winchester introduced it into their model 54 bolt action rifle. The original inspiration of the 220 Swift Ammo came from Grosvenor Wotkyns, who wanted to neck down the 250-3000 Savage case. However, Winchester necked it down to .22 caliber and loaded it with a 48-grain bullet with a muzzle velocity of 4110 fps.
The 220 Swift Ammo uses .224 bullets despite its name and continues to be the most accurate high-power .22 cartridge created. Like other high-velocity cartridges, it usually has erratic performance on larger specimens unless you utilize bullets constructed for this purpose. The .220 Swift Ammo shoots flatter than other ammo at 325 yards. It is also known to deliver 725 foot-pounds energy.
The cartridge length of the 220 Swift Ammo is 2.680 inches, leaving enough room for standard short-action magazines. In addition, with its powder capacity, today’s longer high B.C. bullets are an excellent choice for increasing its versatility. With the 220 Swift Ammo, you can achieve muzzle velocities as high as 3,350 fps with a 75-grain bullet.
It is also famous for its precisions and offers users long-range performance and minimal wind deflection. Besides its use for long-range rodent control work, it is also ideal as a long-range coyote cartridge. In states where .22 calibers are legal for hunting big games, the 220 Swift Ammo is a proven killer of mule deer, pronghorn, and even whitetails. It is an excellent choice for ringing steel at a distance; all you have to do is pace yourself.