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.220 Swift


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. It was the first factory loaded rifle cartridge with a muzzle velocity of over 1,200 m/s (4,000 ft/s). With modern powders and precision loadings, the round is capable of pushing 1500+ meters a second. 


Ammunition Type Damage Bullet Velocity (m/s) Barrier Penetration Armor Piercing
40gr Ballistic Tip 4.9 1296 6.25 4
55gr Soft Point 5.4 1128 4.25 4
50gr Soft Point 5.2 1179 3.95 4
50gr Varmint 8.4 1203 1.75 4
30gr Match 4.9 1579 4.7 0
Note: Barrier penetration represents the rounds ability to go through walls and barriers. Armor piercing represents the rounds ability to penetrate body armor plates.