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The .25-20 Winchester / 6.6x33mmR, or WCF (Winchester center fire), was developed around 1895 for the Winchester Model 1892 lever action rifle. It was based on necking down the .32-20 Winchester. In the early 20th century, it was a popular small game and varmint round, developing around 1,460 ft/s with 86-grain bullets.
List of rifle cartridges, by primer type, calibre and name. ... .25-20 Winchester.25-35 Winchester.25-45 Sharps.297/250 Rook.250-3000 Savage.255 Jeffery Rook
The standard .25-35 Winchester load is about three times as powerful in muzzle energy as the .25-20 Winchester, a cartridge of similar bore size earlier introduced by Winchester. [3] The .25-35 was valued for its speed, trajectory, and lower recoil. [4] It was a popular round in the Winchester Model 1885 High Wall single-shot rifle.
Calibers for the rifle vary and some are custom-chambered. The original rounds were the .32-20, .38-40, and .44-40 Winchester centerfire rounds, followed in 1895 by the new .25-20. [3] A few Model '92s chambered for .218 Bee were produced in 1936–38. [3] Rifles in .44-40 proved to be most popular, far outstripping sales of the other chamberings.
The .25 ACP was designed because .25-caliber was the smallest John Browning could go while still retaining a centerfire primer pocket, which would be more reliable for self-defense than rimfire primers. As such, the .25 ACP allows for a very compact and lightweight gun, usually a semi-automatic pocket pistol. [4]
List of Winchester Center Fire cartridges. List of Winchester Center Fire rifle cartridges. More commonly known as WCF, it is a family of cartridges designed by Winchester Repeating Arms Company. [1] There are many other Winchester cartridges that do not carry the WCF moniker, such as the .300 WSM. .270 Winchester, and .300 Winchester Magnum.
The 25 mm round can be used for anti-materiel or anti-personnel purposes. In the anti-personnel role, a 25 mm weapon armed with HE rounds can kill large numbers of opposing troops either in the open or in light fortifications. In the anti-materiel role, a 25 mm weapon armed with armor-piercing rounds can disable many types of aircraft and ...
20 mm caliber. 20 mm caliber is a specific size of popular autocannon ammunition. The dividing line between smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. machine gun vs. autocannon ), is conventionally taken to be the 20 mm round, the smallest caliber of autocannon. All 20 mm cartridges have an outside ...