The 8×50mmR Lebel is a rifle cartridge that can be used in what rifle that had a bolt modification added in 1893?
8×50mmR Lebel The 8×50mmR Lebel (8mm Lebel) (designated as the 8 × 51 R Lebel by the C.I.P.) rifle cartridge was the first smokeless powder cartridge to be made and adopted by any country. It was introduced by France in 1886. Formed by necking down the 11mm Gras black powder cartridge, the smokeless 8 mm Lebel cartridge started a revolution in military rifle ammunition. Standard 8mm Lebel military ammunition was also the first rifle ammunition to feature a spitzer boat tail bullet (Balle D), which was adopted in 1898. The long-range ballistic performance of the 8mm Lebel bullet itself was exceptional. For use in the magazine tube-fed early Lebel rifle, the 8mm case was designed to protect against accidental percussion inside the tube magazine by a circular groove around the primer cup which caught the tip of the following pointed bullet. However, the shape of its rimmed bottle-necked case, having been designed for the Lebel rifle's tube magazine, also precluded truly efficient vertical stacking inside a vertical magazine. The bolt thrust of the 8mm Lebel is relatively high compared to many other service rounds used in the early 20th century. Although it was once revolutionary, the 8mm Lebel was declared obsolete after World War I and was soon after replaced with the 7.5×54mm French round.
8mm Roth–Steyr The 8mm Roth–Steyr is a military centerfire pistol cartridge adopted by the Austro-Hungarian cavalry in 1907 for the "Repetierpistole" M7—the first self-loading pistol adopted by a major military power. The cartridge headspaces on the mouth of the case. Ammunition was typically packaged in a unique ten-round charger. Austrian military production contained greased un-plated steel-jacketed bullets. A few private firms in Austria manufactured ammunition with cupro-nickel-jacketed bullets. Fiocchi Munizioni manufactured 8mm Roth–Steyr cartridges as one of its specialty lines as recently as 2017. An alternative source of reloadable cartridge cases is a labor-intensive process of base forming, trimming, neck reaming and resizing .30 Carbine brass.