25M Center Fire Pistol
25m Centre Fire Pistol is one of the ISSF shooting events and is normally a men-only event.
Other than the calibre used, the Centre Fire event is exactly the same as the 25m Pistol Women, and Men’s Sport Pistol events.
The 25m Centre Fire match is shot with a handgun of any calibre between 7.62 mm (.30”) and 9.65 mm (.38”). The most popular choices by far are specially designed sportpistols and revolvers in .32 calibre. Using a revolver is not a disadvantage because there are no speedy series of shots involved. The name Center-Fire comes from the ignition system of these calibers as opposed to the Rimfire of .22 cartridges.
This information was taken from the Offical Pistol Australia website and additional information can be found here