Present day ammunition is generally rimfire, or center fire. Large cartridges, such as .44 Magnum, 30-06 rifles, etc, have a primer cap located at the center of the base. This is struck by the firing pin to fire the cartridge, this- center fire. Small ammunition, most commonly .22 Long Rifle, .22 Short, etc, does not have a central primer cap, The hollow rim of the cartridge contains a primer compound. The firing pin crushes a portion of the rim, firing the priming compound that is pinched in the hollow rim- thus Rim Fire. In the 1800w, several other systems were attempted, such as lipfire, cupfires, teat fires, etc. They were replaced by the rimfire and center fire systems, and are now known only to collectors.
There is a center fire and a rim fire.
A rim fire cartridge has the primer built into the rim of the shell casing. The casing must have a wide flat part at the back. A center fire has the primer in the center of the rear of the casing. The rim fire is less expensive to manufacture but is more prone to jamming. The rim fire is not suitable for rapid fire applications or rough handling.
The difference is explained in the name. A rim fire rifle uses ammunition where the hammer strikes the rim of the bullet. In a center fire rifle, the hammer hits the the center of the bullet. Rim fire ammunition is usually small, like a .22, and center fire ammo is generally larger.
Center fire- the firing pin is placed to strike the center of the cartridge. Rim fire- as the name implies- firing pin strikes the very edge of the rear of the cartridge- the rim.
in the rim of fire or the ring of fire
more then likely it's a center fire. rim fire cartridges are hard to find.
Marlin 31 is a shotgun. Marlin 81 is the rim fire .22.
CF
The Rim Fire which started in August of 2013 is not burning anymore. The fire was extinguished in October 2013, over two months after the start of it.
Rim fire, just like every other .22lr put out there.
Center fire cartridges have a primer at the rear center. Rimfire cartridges have priming compound in a fold all the way around the cartridge rim. The firing pin pinches a point on the rim, making the cartridge fire. They are not considered to be reloadable.
2mm rim fire