was manufactured for use in the cavalry carbine. It consisted of the same cartridge case and bullet, but with a lighter powder charge of only 4.5 grams, and was issued in six round pink paper packets. At the time of its use, the 10.75×58mmR (4.2 line) cartridge was known for its power and accuracy. Later usage No magazine-fed versions of the Berdan ever progressed beyond the prototype phase. Russian troops, however, did have various cartridge holders, such as the Krnka quick-loader, attached to their rifles to aid in reloading. By the late 1880s Russia began the process of replacing the Berdan with a high velocity and magazine fed rifle, and this resulted in the adoption of the Mosin–Nagant. In 1892, a batch of 3,004 Berdan II rifles were converted to 7.62×54mmR for Russian service by arms makers in Belgium. These rifles have new barrels and sights, and new bolts with a front locking lug and longer bolt handle. Had the conversion been deemed fit for service, an additional 40,000 were to be converted. However this did not go through. Sporting rifles and shotguns were re-manufactured in Russia from surplus rifles after the Mosin–Nagant was adopted into service. Markings Markings on the Berdan rifle usually consist of the Imperial Russian double-headed eagle cypher on the top receiver flat. The manufacturer's name in Cyrillic, date of manufacture, and rifle serial number, are on the top of the barrel. Some rifles also show a date of manufacture on the receiver. The serial number was also applied to the bolt. Additional proof marks and property markings are found on the receiver and barrel. There is a factory cartouche on the right side of the buttstock. Comparison with contemporary rifles Users Russian Empire: Both the Berdan I and Berdan II were used by guard units in the Russian Army during the Russo-Turkish War of 1877–78. Russian forces, although ultimately victorious, were badly mauled by the very long range fire from Turk Peabody–Martini rifles during the Siege of Plevna. After the war a long-range auxiliary sight was adopted and retrofitted to the Berdan II infantry rifle. The Berdanka, as it was called, continued on in Russian service even after the adoption of the Mosin–Nagant, primarily with reserve and rear echelon units when the Mosin-Nagant became plentiful. Many Russian troops had Berdan rifles in the Russo-Japanese War of 1905. During World War I, some Russian second line,