Below is a list of the most common current production rimfire ammunition:

The more economically viable production of shotgun and rimfire ammunition continued.

Good quality rimfire ammunition can be quite accurate.

Early in 2003, Federal ceased production of UltraMatch rimfire ammunition.

Twenty-two caliber rimfire ammunition was sold everywhere and was virtually un- traceable.

The rimfire ammunition was produced by Olin in boxes of 30 or 36 shells with the Wingo logo.

Overall reliability of today's rimfire ammunition is extremely high, but is still considerably lower than centerfire ammunition.

The Spencer was successful, but the rimfire ammunition did occasionally ignite in the magazine tube, which would destroy the rifle and potentially injure the user.

A wide variety of rimfire ammunition is available commercially, and the available ammunition varies widely both in price and performance.

Today, .22 LR (Long Rifle) accounts for the vast majority of all rimfire ammunition used.

Occasionally, special limited runs of .32 rimfire ammunition are manufactured for gun collectors with shootable specimens but the round is not considered a current commercial cartridge.

Federal's UltraMatch Rimfire ammunition helped American shooters win gold and silver medals in the 1992 Olympics Games.

A magazine that holds (or looks like it could hold) more than 15 rounds of .22 rimfire ammunition or 7 rounds of a centrefire calibre.

With a work force of nearly 1,500 in Anoka, Minnesota, Federal manufactures a complete line of shotshell, centerfire, and rimfire ammunition and components.

In the .22LR version, the barrel was switched, the magazine follower and spring was removed and the bolt was changed to be able to fire rimfire ammunition.

While continuing to make the Volcanic rifle and pistol, Henry began to experiment with the new rimfire ammunition, and modified the Volcanic lever action design to use it.

He got his first contract to modify the .30 caliber Browning machine gun using the floating chamber system to fire .22 caliber rimfire ammunition to facilitate inexpensive training.

Due to the limited selection of commercial ammunition, the .22 WMR was the case used by a small but dedicated group of wildcatters for handloading high performance rimfire ammunition.

"A device ostensibly designed for submarine spear fishing, but capable of chambering and firing .22 caliber rimfire ammunition, is a firearm within the purview of the National Firearms Act.

There is a subcategory of collectible rimfire ammunition with headstamps commemorating certain persons who have worked in the industry, often issued in extremely small quantities on the occasion of that person's retirement.

It will not chamber correctly in other .22 rimfire weapons, nor will other .22 rimfire ammunition, including the very dimensionally-similar .22 Remington Automatic, interchange with it.

CCI (Cascade Cartridge Inc.), based in Lewiston, Idaho, manufactures rimfire ammunition, centerfire handgun ammunition, and primers for reloaders and industrial power loads.

Most semi-automatic rifles firing .22 LR cartridges will often only work properly when firing standard or high velocity rimfire ammunition; subsonic rounds will often not cycle their actions properly.

Due to concerns about stopping power and problems with using rimfire ammunition the MKR project was abandoned at the prototype stage and thus the 4.5mm mkr never saw service or any kind of widespread use.

On the other hand, these will function from magazines in the same way as supplemental chambers, and allow the use of the least expensive rimfire ammunition in firearms chambered in calibers larger than .22 (5.56 mm).