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Within the framework of the product support service Oerlikon improves the product and adapts it regularly to the latest requirements. An important step forward was made in 1982/83 when the ammunition penetration performance range of the 25 mm APDS-T (sub-caliber) round was increased 150% from 1000 to 2500 m.
The SR-25 (Stoner Rifle-25) [1] is a designated marksman rifle and semi-automatic sniper rifle designed by Eugene Stoner and manufactured by Knight's Armament Company. [1] The SR-25 uses a rotating bolt and a Stoner bolt and carrier piston gas system. It is loosely based on Stoner's AR-10, rebuilt in its original 7.62×51mm NATO caliber.
The length of the barrel (especially for larger guns) is often quoted in multiples of the caliber, used, for example, in US naval rifles 3 in (76 mm) or larger. [2] The effective length of the barrel (from breech to muzzle) is divided by the barrel diameter to give a dimensionless quantity.
This short barrel length limits the velocity and energy that a .25 can offer and contributes to the myth that the .25 ACP is less powerful than the .22 Long Rifle. The .22 LR is a rifle cartridge and, as such, is typically tested in rifle-length barrels, which is why the .22 LR appears to be more powerful than the .25 ACP.
The .257 Roberts, also known as .257 Bob, [2] is a medium-powered .25 caliber rifle cartridge.It has been described as the best compromise between the low recoil and flat trajectory of smaller calibers such as the 5 mm (.22 in) and 6 mm (.24 in), and has more energy, but is harder recoiling, similar to larger hunting calibers, such as the 7 mm (.28 in) and 7.62 mm (.30 in).
The shoulder is reformed, length is trimmed, neck is sized to .308. This caliber is very popular, and examples are available in a wide variety of styles. Bullet weights can currently be found between 100gr to 220gr 7.62x40 Wilson Tactical (300 HAM'R) : Uses 5.56 NATO cases (also .223). Shoulder is re-formed, length is trimmed, neck is sized to ...
The .25-20 Winchester / 6.6x33mmR, or WCF (Winchester center fire), intermediate cartridge 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 ...
The 25 × 59 mm round that is used in the XM109 is the same one originally developed for the cancelled XM307, product of the Objective (later Advanced) Crew Served Weapon program (OCSW / ACSW). As with the XM307, the XM109 can be reconfigured back to .50 BMG , in the XM109's case this is done by swapping the 25mm upper receiver for a standard ...