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During World War I, the production of commercial ammunition was curbed and total capacity was dedicated to manufacture rifle and handgun cartridges for the army. The Steyr 9 mm cartridge was developed and introduced to serial production during this period.
The "rosettes" (a reversed arrowhead superimposed atop a circle, representing a rifled gunbarrel) indicate the use of Neroxin non-corrosive primers, S&B's proprietary brand. S&B, SB Sellier & Bellot (1825–1936; 1983–present) – Prague, Czechoslovakia (now Czech Republic). On the headstamp the "S&B" is at the 12 o'clock position.
The .303 British (designated as the 303 British by the C.I.P. [2] and SAAMI [3]) or 7.7×56mmR, is a .303-inch (7.7 mm) calibre rimmed tapered rifle cartridge.The .303 inch bore diameter is measured between rifling lands as is the common practice in Europe which follows the traditional black powder convention.
In World War II a different system was introduced for varying charges for the QF 25 pounder gun-howitzer, which used separate-loading QF ammunition. A separate 2.7-pound (1.2 kg) "super charge" cartridge was available for firing the 20-pound (9.1 kg) high-velocity anti-tank AP shot, and an additional 4.5-ounce (130 g) "super charge increment ...
Cartridges are made in various countries, including Russia, Ukraine, Romania, Bosnia and Herzegovina, and Poland. One manufacturer of RAS cartridges is Lugansk Cartridge Works , in Lugansk, Ukraine and its headstamp code is the letters " L U ".
Lead-alloy bullets used with gunpowder firearms were unsatisfactory at the bullet velocities available from rifles loaded with nitrocellulose propellants such as cordite.By the late 19th century, lead-alloy bullets were being enclosed within a jacket of stronger mild steel or copper alloyed with nickel or zinc to reliably impart stabilizing rotation in rifled barrels.
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While rimfire cartridges larger than .22 caliber existed, such as the .30 rimfire, .32 rimfire, .38 rimfire, .41 Short (for the Remington Model 95 derringer), .44 Henry (for the Henry rifle, later used by the famous Winchester Model 1866), the .56-56 Spencer (for the Spencer rifle was the world's first military metallic cartridge repeating ...