We have over 250 rifle, revolver and pistol calibers in the database for which we offer load data. This includes all different types: Magnum, Pistol/Revolver, Rimfire, Rimless and Rimmed. Next to very popular calibers such as .223, .308 WIN, 30-06, .270 WIN, 6.5 mm Creedmore, 9 mm Luger or .45 ACP we also cover rather "exotic" calibers.
We provide the following information for each caliber: suitable bullet diameter, standard case length (l3), standard overall catridge length (OAL), maximum allowed pressure. Most calibers also contain images with all relevant cartridge measures as well as datasheets.
.17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge developed by the ammunition company Hornady in 2002. It was developed by necking down a .22 Magnum case to take a .17 caliber (4.5 mm) projectile. Commonly loaded with a 17 grain (1.1 g) projectile, it can deliver muzzle velocities in excess of 775 m/s (2,650 ft/s).
The .17 Remington was introduced in 1971 by Remington Arms Company for their model 700 rifles. It is based on the .223 Remington case necked down to .172 in (4.37 mm), with the shoulder moved back. It was designed exclusively as a varmint round, though it is suitable for smaller predators. There are those such as P.O. Ackley who used it on much larger game, but such use is not typical. Extremely high initial velocity (over 4000 ft/s 1200 m/s), flat trajectory and very low recoil are the .17 Remington's primary attributes. It has a maximum effective range of about 440 yards (400 m) on prairie dog-sized animals, but the small bullet's poor ballistic coefficients and sectional densities mean it is highly susceptible to crosswinds at such distances.
The 223 Remington is a rifle cartridge, originally developed in 1957 as a commercial hunting bullet for varmint hunting. The first rifle chambered for it came out in 1963. It has continued to be a popular civilian small game hunting cartridge. Though it finds occasional use on medium game, this is not recommended and is illegal in at least ten U.S. states and the United Kingdom, where the .243 Winchester or similar cartridges are the smallest bore cartridges that are legal for hunting deer. A military version, M193, with a 55-gr full metal jacket bullet was used by the United States Army in the M16 rifle. The 5.56×45mm NATO was also developed from the 223 Remington.