SIG-510

The SIG SG 510 was a Swiss battle rifle adopted as the Sturmgewehr 57 by the Swiss military. It fired the Swiss 7.5 mm cartridge in a heavy, accurate, and robust rifle that reflected Switzerland's marksmanship culture and defensive doctrine. Compared with later lightweight assault rifles, the SG 510 feels like the last generation of full-power national service rifles.

The SG 510's roller-delayed system, heavy construction, bipod provision, and full-power cartridge gave it excellent range and stability for deliberate fire. Those same traits made it heavy and less suited to the lighter, high-volume infantry tactics that shaped later assault rifles. The weapon's capability story is therefore a tradeoff between precision and burden.

Operationally, the SG 510 is most useful when placed before the SG 550. It shows what Switzerland valued in a service rifle: accuracy, robustness, and domestic production. The later shift to a lighter 5.56 mm rifle did not erase those priorities; it adapted them to a new ammunition and infantry-mobility era.