If you do an internet search, you will get a couple of different hits. For the most part it is made in batches and not all vendors have it at all times.
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.
You can get 38 RIM fire ammunition at your local gun shop. I would recommend visiting your local firearms expert to see what they would reccommend for your weapon.
32 Short rimfire ammunition. This ammunition is now obsolete and was only available through Navy Arms. You can usually find some at the local gunshows but expect to pay a good price for it.
Try Old Western Scrounger
The location of the primer. In the rim, or at the rear center of the cartridge case. Most centerfire cartridges can be reloaded, most rimfire cannot be.
Position of the primer- on the rim or rear center of cartridge case. In general, rimfire ammo is less powerful and cannot be reloaded.
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.
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.
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.
In the US, yes.
It uses the 22 Magnum cartridge. MRF stands for "magnum rim fire". It uses the 22 Magnum cartridge. MRF stands for "magnum rim fire".
Online; Gunbroker and Luckygunner may be able to direct you to a brick-and-mortar store near you.