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The velocity of standard-velocity .22 LR rounds varies between manufacturers. Some standard velocity ammo may be slightly supersonic-around 1,125 ft/s (343 m/s), other ammo such as CCI Standard Velocity .22 LR ammunition is rated at 1,070 ft/s (330 m/s). Most standard velocity ammo has a bullet weight of 40 gr (2.6 g).
Today, .22 LR (.22 Long Rifle) accounts for the vast majority of all rimfire ammunition produced. Standard .22 LR rounds use an essentially pure lead bullet plated with a typical 95% copper, 5% zinc combination. These are offered in supersonic and subsonic types, as well as target shooting, plinking, and hunting versions. These cartridges are ...
Similarly to SLAP rounds (saboted light armor penetrator) which get their armor-piercing ability from the propulsion of a 7.62 mm tungsten heavy alloy bullet from a 12.7 mm barrel (.50 caliber) using a sabot with much more energy than is usually possible from a 7.62 mm round, HEIAP munitions utilize a similar theory with an added explosive ...
The main targets for such ammunition are snakes, rodents, birds, and other pests at very close range. The most common snake shot cartridge is .22 Long Rifle loaded with No. 12 shot. From a standard rifle these can produce effective patterns only to a distance of about 3 m (9.8 ft), but in a smoothbore shotgun (or garden gun ) that can extend as ...
The .22 TCM (Tuason, Craig, Micromagnum) is a proprietary bottlenecked rimless cartridge derived from a 5.56×45mm NATO (.223 Remington) parent case. It was developed by custom gunsmith Fred Craig in collaboration with Martin Tuason, the President of Rock Island Armory (RIA) and Armscor.
Later that year the U.S. Army reduced its planned order to 30,000 rounds. Low-rate production of 500 rounds was approved in May 2005 and Raytheon was awarded a contract to produce 165 rounds in June 2005, [37] worth $22.1 million. [39] In September of that year, the round was successfully demonstrated at Yuma Proving Ground, Arizona. [40]
Syntech was designed for indoor-range shooters. In addition to being cleaner than conventional ammunition, Federal Premium claims that Syntech is also safer due to decreased splash and fragmenting when hitting hard targets. The company says its studies show that what little spray there is stays close to the target. [20]
If a bullet transitions between supersonic speed and subsonic speed before striking the target, its flight path is slightly disturbed, reducing precision. To avoid this phenomenon, strictly subsonic ammunition is preferred. Centerfire ammunition is often handloaded, with very careful selection of components so maximum precision can be obtained ...