The .22 cartridge is the most commonly used bullet and it is also the cheapest to use. Excellent for hunting small game as well as for target practice, .22 ammunition is always there when you need it. The least noisy of all pistol rounds, .22 LR rounds typically travel anywhere from 1,080 ft/sec to 1,750 ft/sec and have an impact energy of 104 ft. lbs .22 rounds are also available in a sub-sonic version, which has no sonic crack and are often a favorite of small game hunters.