Relative killing power at 100 yards, taken from the "Guns and Shooting Online Rifle Cartridge Killing Power Formula and List" and based on published Winchester factory load ballistics taken in a 20" test barrel:
.223 Remington, 60 grain @ 3000 fps - 6.3 killing relative power
.30 Carbine, 110 grain @ 1990 fps - 7.4 relative killing power
.357 Magnum, 158 grain @ 1830 fps - 12.7 relative killing power
Recoil energy and velocity taken from the "Expanded Rifle Recoil Table":
.223 Remington, 62 grain @ 3025 fps, 7.0 lb. rifle - 3.9 ft. lbs. recoil energy, 6.0 fps recoil velocity
.30 Carbine, 110 grain @ 1990 fps, 7.0 lb. rifle - 3.5 ft. lbs. recoil energy, 5.7 fps recoil velocity
.357 Magnum, 158 grain @ 1757 fps, 7.0 lb. rifle - 5.2 ft. lbs. recoil energy, 6.9 fps recoil velocity
.357 Magnum, 158 grain @ 1757 fps, 5.5 lb. rifle - 6.6 ft. lbs. recoil energy, 8.8 fps recoil velocity
.243 Winchester, 100 grain @ 2960 fps, 7.5 lb. rifle - 9.9 ft. lbs. recoil energy, 9.2 fps recoil velocity
.308 Winchester, 180 grain @ 2600 fps, 7.5 lb. rifle - 19.2 ft. lbs. recoil energy, 12.9 fps recoil velocity
These .357 figures are based on a maximum .357 Magnum handload fired in an 18.5 inch barrel as per the Hodgdon 2009 Annual Reloading Manual. The .357 Magnum carbine has almost twice the recoil of the .223, but no matter how you slice it, these are very low recoil numbers. Note the recoil figures for typical .243 and .308 rifles added for comparison.
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