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  2. Handloading - Wikipedia

    en.wikipedia.org/wiki/Handloading

    Handloading ammunition avoids the labor costs of commercial production lines, reducing the expenditure to only the cost of purchasing components and equipment.Reloading may not be cost effective for occasional shooters, as it takes time to recoup the cost of needed equipment, but those who shoot more frequently will see cost-savings over time, as the brass cartridge cases and shotgun shell ...

  3. Thompson/Center Ugalde - Wikipedia

    en.wikipedia.org/wiki/Thompson/Center_Ugalde

    The 7 mm version first appeared around 1980, with the .25 caliber appearing in 1987. The larger calibers provide more downrange energy, and resist wind deflection better than the original .22 caliber (5.56mm) bullet, and the moderate case capacity of the .223 Remington works well in the short pistol barrels. [1]

  4. Rim (firearms) - Wikipedia

    en.wikipedia.org/wiki/Rim_(firearms)

    Semi-rimmed cases are less common than the other types. [4] The .38 Super, a higher pressure loading of the old .38 ACP case, is notorious for being less accurate than rimless cases, and so most modern .38 Super handguns are chambered so that the cartridge headspaces off the case mouth, like a rimless case. If the chamber is cut shallow, so the ...

  5. .38/.45 Clerke - Wikipedia

    en.wikipedia.org/wiki/.38/.45_Clerke

    It is essentially a .45 ACP case, necked down to .357, resulting in a cartridge similar in form to the earlier 7.65×21mm Parabellum and 7.63×25mm Mauser cartridges. It was created to be a low recoil target cartridge that would function reliably with multiple bullet types, FMJ to cast lead wadcutters without the feeding problems that straight walled pistol rounds sometimes exhibit. [2]

  6. Cartridge (firearms) - Wikipedia

    en.wikipedia.org/wiki/Cartridge_(firearms)

    The head of a brass case can be work-hardened to withstand the high pressures, and allow for manipulation via extraction and ejection without rupturing. The neck and body portion of a brass case is easily annealed to make the case ductile enough to allow reshaping so that it can be handloaded many times, and fire forming can help accurize the ...

  7. .40 Super - Wikipedia

    en.wikipedia.org/wiki/.40_Super

    In order to maximize the performance potential and reliability of the new cartridge, it was decided to lengthen the cartridge case from .45 ACP (.898 in) to 10 mm (.992 in) length. By trimming .45 Winchester Magnum brass to 10 mm case length and necking them to .40 caliber, the .40 Super began to take final shape. .40 Super ammunition box

  8. ICL cartridges - Wikipedia

    en.wikipedia.org/wiki/ICL_cartridges

    The Marmot is based on the .220 Swift with improved characteristics such as steeper sides and shoulder angle, but is not improved in the sense that you cannot fire form factory ammunition in its chamber. Performance with a 50-grain (3.2 g) bullet is approximately 3,875 ft/s (1,181 m/s) and with a 55-grain (3.6 g) bullet is approximately 3,755 ...

  9. Headspace (firearms) - Wikipedia

    en.wikipedia.org/wiki/Headspace_(firearms)

    Headspace positioning of rimless, rimmed, belted and straight cartridges Several different rimmed, .22 rimfire cartridges, which have a uniform forward diameter, and which have headspace on the rim, allowing any length of cartridge shorter than the maximum size to be used in the same firearm Firearms chambered for tapered rimmed cartridges like this .303 British cannot safely fire shorter ...