SIG SG 510 (Sturmgewehr Model 510)

History of SIG SG 510 (Assault Rifle Model 510)

World War II (1939-1945) proved the value of self-loading rifles to armies involved in major conflicts. Over the next few decades, this global presence created a huge market for the type, with Switzerland's SIG Group introducing several designs during this period - including the "SG 510" battle rifle, which basically Is the shape of the NATO caliber.

The earlier Stgw 57 series (this post-war model fits the 7.5x54mm Swiss M1911).

The "battle rifle" category stemmed from the postwar need to differentiate the self-loading rifle type from its assault rifle cousin. The former fires full-power rifle cartridges in semi/full automatic action, while the latter is lined up but holds an intermediate cartridge (such as the 5.56mm Colt M16).

Therefore, those long guns that appeared shortly after the war, such as the Springfield M14 in the United States and the FN FAL in Belgium, were recognized as "battle rifles".

The SG 510 follows the advertised battle rifle characteristics: it contains the 7.62x51mm NATO rifle cartridge, widely used in the West (since 1954), and uses an automatic breech - this is led by a barrel delayed recoil system . It is fed from a detachable 20-, 24- or 30-round magazine and has a range of up to 700 meters with standard sights. Optical raises that to 875 yards.

The rate of fire is 450 to 600 rounds per minute. The gun weighed 9.6 pounds, was 43 inches long, and used a barrel that was 19.9 inches long.

Visually, the rifle adopts a traditional design layout, including shoulder rest, pistol grip and mostly jacketed barrel layout. The barrel is closed at the muzzle by means of a perforated brake. The charging handle is installed on the right side of the receiver and is mainly operated by the right hand.

The magazine was placed in the well in front of the trigger unit. Due to the height, the front and rear rear sights are very prominent, located at the end of the handguard and the rear upper part of the casing.

The design of the SG 510 is credited to Rudolf Amsler, with most of the work done in the early 1950s. Production was increased in 1957 and continued into 1983, while major variants of the basic design included the SG 510-1, SG 510-2 and SG 510-4.

The SG 510-1 was the original standard battle rifle for the Swiss Army, while the SG 510-2 was a lightweight version of the same rifle. Equipped with a shortened barrel assembly, the SG 510-3 was originally designed for the Finnish army but was ultimately rejected in prototype form. The SG 510-4 also gets a short barrel, but its rubber stock is now replaced with a wooden construction with a new design line - both Bolivia and Chile have put this model into service. The SG 510-5 was loaded on the 7. 62x63-US 30-06 rifle cartridge, originally intended for Mexico but rejected in its prototype form.

SG 510-6 For testing only, stocked with local Swiss 7.5x55 cartridges. The AMT ("American Match Target") based on the SG 510-4 is marketed in the United States as a civilian precision product, but is manufactured in limited quantities (0.308 chambers). The SG 510-6 became another prototype, this time 7.5x55mm, designed to replace the Stgw 57 series.

The PE 57 exists for the civilian market, so it is limited to semi-automatic rifles, but for the 7.5x55mm GP11 Swiss.

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