25 meter pistol, formerly and unofficially still often known as sport pistol, is one of the ISSF shooting events. It was devised as a women's event in the 1960s, based upon the rules of 25 meter center-fire pistol but shot with a .22-caliber sport pistol instead of the larger-caliber guns men used. As with all ISSF pistol disciplines, all firing must be done with one hand, unsupported. Most shooters excelling in 25 meter pistol also compete at the same level in 10 meter air pistol, a similar precision event.