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The .277 Fury or 6.8×51mm Common Cartridge [4] [5] (designated as the .277 SIG Fury by SAAMI) [1] is a centerfire rimless bottlenecked rifle cartridge announced by SIG Sauer in late 2019. [2] Its hybrid three-piece cartridge case has a steel case head and brass body connected by an aluminum locking washer to support the high chamber pressure ...
The SIG MCX-SPEAR [4] is a multi-caliber rifle developed by the American division of SIG Sauer from the SIG MCX series of carbines. The SIG MCX-SPEAR is primarily chambered in .277 SIG FURY but can be adapted to 7.62×51mm NATO and 6.5mm Creedmoor with a barrel change.
The new 7-mm .277 Fury round will be deployed both in an infantry battle rifle as well as in a dedicated machine gun and exemplifies the requirement of the much higher chamber pressure, 80-90,000 PSI Vs 55-60,000 PSI in the older ammunition required to attain the demanded ballistic performance with a 7-mm bullet in both weapon systems.
In addition, both the 6.8×51mm and the 7mm-08 Remington share the same parent case of the 7.62x51mm NATO, necked down to accept the respective bullet of each cartridge. [32] The most dramatic departure between these two cartridges concerns a new manufacturing technique used in relation to the 6.8×51 combat cartridge (designated as the 135 gr ...
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The Supreme Court has set a new precedent in custody law due to a local case in which a mother ... The report filed by the psychologist questioning K.G.’s ability to parent her children was used ...
It’s been one year since three of Jordan Willis’ friends, Clayton McGeeney, David Harrington and Ricky Johnson, were found dead outside Willis’ rental home in Kansas City, Mo.
The case head and rim dimensions exactly match the military 7.62x51 (also .308), however, the case body is slightly wider and has more taper. 400 AR : Wildcat. The parent is the 7.35×51mm Carcano rifle case. It has a rim diameter of 0.447", which allows the use of the 7.62×39mm bolt face of an AR-15.