Quote:
Originally Posted by jimjamuser
Lighter recoil is an equally important reason for the military going to the 22 caliber cartridge. Teaching recruits to handle higher recoil cartridges would be more difficult and time-consuming.
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The military chose the 5.56/.223 round to allow troops to carry more rounds into combat. The higher muzzle velocity of 3,250 feet per second created enough terminal force while maintaining lighter recoil for quicker follow up shots.