Pistol calibers come in many different forms. For a chart comparing these, go to www.ammoguide.com. Calibers start at the .17 and go up to .50 caliber. Perhaps the most sought are the .357 and 9 mm. Others are the .22 and .45. This can become confusing if you are new to handguns, so its better to consult your gun dealer on what?s right for you.
