Monday, April 9, 2012

Swiss Army SIG SG 510 Sturmgewehr 57

The SIG SG 510 - Sturmgewehr 57

The SIG SG 510 or Sturmgewehr 57 is an automatic rifle manufactured by Schweizerische Industrie Gesellschaft (now SAN Swiss Arms) of Switzerland. It uses a similar roller-delayed blowback system to the H&K G3 and CETME rifles. It also has a SAW counterpart akin to the American Stoner 63.

Photo Credit : Here

The SIG SG 510-1 entered service in the Swiss Army with the designation Fass 57 (French, for Fusil d' Assaut 57) or Stgw 57 (German for Sturm Gewehr 57).
The Sturmgewehr 57/SIG SG 510-1 was adopted for Swiss military service in 1957.
The Stgw 57 has been gradually replaced by the lighter SIG SG 550 but is still in active service with reservists who have not had a chance to be upgraded to the SG 550.

The SG 510 has a distinctive T-shaped bolt handle similar to the earlier K31. The butt-stock and hand guard of the rifle are rubberized for comfort and durability—a feature totally unique among rifles—and the front hand guard is ribbed to provide a better grip.

  Photo Credit : Here

The SG 510-4 chambered in 7.62×51mm NATO with a 305 mm (1 in 12 in) twist rate barrel was adopted by Chile and Bolivia. The SIG SG 510 is officially classed as an automatic rifle but served as a designated marksman weapon (in Chile with Supra 4×24 scope).

Type Battle rifle
Place of origin Switzerland
In service 1957–present
Used by Switzerland, Bolivia, Chile
Manufacturer Schweizerische Industrie Gesellschaft (SIG),
Beretta Produced 1957–1983 Variants SG 510-1, SG 510-2, SG 510-3, SG 510-4
Weight 5.7 kg (12.57 lb) (Stgw 57)
4.37 kg (9.63 lb) (SG 510-4)
Length 1,100 mm (43.3 in) (Stgw 57)
1,015 mm (40.0 in) (SG 510-4)
Barrel length 583 mm (23.0 in) (Stgw 57)
505 mm (19.9 in) (SG 510-4)

Cartridge 7.5×55mm GP 11 (Stgw 57)
7.62×51mm NATO (SIG 510-4) Action Roller-delayed blowback  
Rate of fire 450–600 rounds/min  
Muzzle velocity 750 m/s (2,460 ft/s) Effective range 640 m (700 yd) iron sights
600 m (656 yd) Kern 4×24 optical sight 

Feed system 20, 24, 30-round detachable box magazine


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