Sig Spear 6.8x51mm - The US military has new machine guns and new rifles of a new caliber. SIG Sauer has confirmed the final delivery of its Next Generation Weapon System (NGSW) to the US Army, including the new 6.8x51mm hybrid ammunition, the NGSW-AR machine gun, the SIG NGSW-R rifle and the SIG Sauer. pressure. SIG Sauer President/CEO Ron Cohen noted that the collaboration with the US military has led to the rapid development of today's weapon systems and has brought the most innovative next-generation team weapon system to the US Army.
The new system fires 6.8×51 Hybrid ammunition, a lightweight cartridge designed to withstand higher pressures, resulting in terminal velocity and performance. In civilian form, SIG Sauer refers to this cartridge as the 277 SIG FURY. The 277 SIG Fury and Military 6.8x51mm cartridge has a standard upper brass body with a steel alloy lower head. The hybrid design allows the ammunition to operate at a higher pressure than conventional ammunition. SIG Sauer noted that "despite its revolutionary design, [this] hybrid ammunition can be mass-produced immediately."
Sig Spear 6.8x51mm
SIG Sauer's 6.8mm hybrid ammunition is designed to increase penetration at longer ranges. Cohen continued, "Using patent-pending technology, SIG Sauer's ammunition division has developed a new cartridge that produces a more compact cartridge, increasing velocity and accuracy while reducing ammunition weight."
Sig 277 Fury Ballistics Chart
The new 6.8x51mm hybrid ammunition offers significant advantages to the new rifle: "SIG Sauer's Lightweight Belt-Feed Machine Gun (NGSW-AR) doubles its effective range and is 40% lighter than the current M249, while retaining the preferred belt-fed mode. , with reduced felt recoil for improved accuracy .The SIG SAUER Rifle (NGSW-R) is built on the battle-tested MCX platform and chambered in 6.8×51, the NGSW-AR and NGSW-R feature familiar AR-style two-handed ergonomics designed for a smooth transition from legacy guns to SIG NGSW systems.
The SIG Sauer NGSW-AR is a lightweight (less than 15 pounds) medium caliber machine gun chambered in 6.8 x 51mm hybrid ammunition. SIG Sauer designed the NGSW-AR to be 40% lighter than the current system and dramatically reduces recoil while retaining a traditional belt feed action for improved downrange capability. This 6.8mm machine gun features ambidextrous AR-style ergonomics, a quick-release magazine, larger M1913 rail space for optics, a folding stock, and a quick-release suppressor. SIG Sauer claims this NGSW-AR "improves on the performance and functionality of the legacy M249."
The NGSW-R (aka MCX-Spear) submachine gun is derived from SIG's existing military rifle with the added firepower of the 6.8mm cartridge. Features include collapsible and collapsible base, rear and side loading handles, reinforced M-LOK™ free-floating handguard, fully ambidextrous controls and quick release.
The 6.8x51mm cartridge is offered by SIG Sauer in a civilian version called the 277 SIG FURY. It has a maximum SAAMI pressure of 80,000 psi, which puts the 135-grain bullet at 3000+ fps. 80K PSI pressure is higher than almost all other cartridges. To achieve high pressure, the 277 FURY uses a hybrid case with a brass body and a harder alloy body head. This design allows the cartridge to operate at very high pressures. Dan Horner of SIG Sauer told us, "When handloaders get their hands on this brass, it's sure to be a game changer." We imagine this cartridge can be chambered in 6.5mm and will fill the 6.5 Creedmoor perfectly. And yes, the official name of the cartridge is all letters "277 SIG FURY".
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