Breda Modello 30

Italian soldiers nicknamed the Breda 30 the 'fucile mitragliatore disgraziato' - roughly 'the wretched machine gun' - and its onboard oil pump was the source of its misery: every cartridge was squirted with lubricant a split second before chambering to compensate for the screw-threaded breech's weak primary extraction, and in the dust of Libya, Ethiopia, and the Western Desert the oiled rounds became flypaper for sand, reducing the weapon to a single-shot rifle within minutes. The fixed 20-round magazine was permanently hinged to the right side of the receiver and had to be loaded in place using 6.5mm Carcano stripper clips - a uniquely impractical design that made a bent feed lip in combat mean the entire weapon was combat-lost, since the magazine could not simply be swapped for a spare.

The Breda 30's mechanical quirks compounded each other in ways that were catastrophic under field conditions. The fixed 20-round magazine, hinged to swing out to the right of the receiver and reloaded with 6.5mm Carcano stripper clips, could not be replaced in the field if its feed lips were bent or dented - a routine occurrence in combat that rendered the entire weapon a single-shot rifle. The lubrication pump, drawing oil from a small onboard reservoir, was necessary to overcome the weak primary extraction of the screw-threaded delayed blowback action: without the oil film, cartridges stuck in the chamber and ruptured. With the oil, every speck of airborne grit became abrasive paste on the cartridge surface, jamming the action and scoring the chamber. Italian troops in North Africa quickly learned that the Breda 30 was nearly unserviceable in desert conditions, and those fighting in Russia found that the oil froze at winter temperatures. The cyclic rate of approximately 475 rpm was barely above that of a period bolt-action rifleman's aimed fire. The 6.5mm Carcano cartridge, while accurate at range, lacked the terminal authority or suppressive volume of contemporaries such as the ZB vz. 26, Bren, or MG 34. Designer Alfredo Scotti's later work on the Scotti-Isotta-Fraschini Model X produced a markedly more reliable weapon, but Italian industrial constraints during wartime made large-scale replacement of the Breda 30 impossible, and production continued at Brescia and Rome until the end of the war.