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The .22 long rifle, also known as the .22 LR or 5.7×15mmR, [4] [5] is a long-established variety of .22 caliber rimfire ammunition originating from the United States. It is used in a wide range of firearms including rifles , pistols , revolvers , and submachine guns .
The most common rimfire cartridges are chambered for .17 caliber and .22 caliber. The bullet diameter for .17 caliber firearms generally measure .172 inch (4.37 mm), while the bullet diameter for .22 caliber firearms generally measure .222 inch (5.64 mm).
The .17 HM2 (Hornady Mach 2) is based on the .22 Long Rifle and offers similar performance advantages over its parent cartridge, at a significantly higher cost. While .17 HM2 sells for about four times the cost of .22 Long Rifle ammunition, it is still significantly cheaper than most centerfire ammunition and somewhat cheaper than the .17 HMR.
(Unlike the steel-cased ammunition, the brass-cased ammo is allegedly more easily reloadable.) Formerly made by Prvi Partizan, it is now manufactured in Taiwan and comes in a white box. WOLF Rimfire – Relabeled Eley Limited mid-grade 22LR ammunition from England and comes in a black box. WOLF Shotshell – Shotgun ammunition with polymer ...
The .22 long is a variety of .22 caliber (5.6 mm) rimfire ammunition.The .22 long is the second-oldest of the surviving rimfire cartridges, dating back to 1871, when it was loaded with a 29 gr (1.9 g) bullet and 5 gr (0.32 g) of black powder, 25% more than the .22 short on which it was based.
.22 long, a cartridge predating the .22 LR, with the same case length using the lighter .22 short bullet.22 long rifle (LR), the most common cartridge type of this caliber, often referred to simply as ".22 caliber" or "22".22 long rifle extra long (LR EX), a variant of .22LR with a longer casing but identical overall cartridge dimensions (see ...
When introduced, the .22 WRF "was the first notable improvement in the killing power" over the .22 LR, [3] and was able to kill cleaner at up to 75 yd (69 m). It is somewhat less accurate than the .22 LR [2] and is most suited to hunting small game such as rabbits or prairie dogs. [3]
Hydra-Shok ammunition has a patented center-post design and notched jacket with a non-bonded lead core. Hydra-Shok is designed to provide more reliable expansion and deeper penetration than other hollow-point projectiles used at that time. Federal Premium claims that the scored jacket and center post design provide a "programmed" expansion.