Can the new 6.8x51 in the M5 rifle defeat a Level 4 SAPI plate? We try our best to find out.

The US Army's transition from 5.56 NATO to the 6.8x51mm (277 Fury) round presents potential long-term implications for civilian ammunition availability. While the Army and Sig Sauer are ramping up production of the new round, the limited civilian rifle options and high cost of entry may hinder market adoption. This could lead to a significant reduction in 5.56 NATO production by facilities like the Lake City Ammunition Plant once the Army fully transitions, potentially impacting civilian supply.

Ian McCollum of Forgotten Weapons critically analyzes the M7 rifle program and the 6.8x51mm cartridge, arguing that the perceived need for extended range and armor penetration in Afghanistan is a flawed premise. He suggests modern tactical solutions like drones are more effective than re-arming infantry with heavier calibers and rifles.

The US Army is adopting the 6.8x51mm cartridge, branded as 277 Fury, for its Next Generation Squad Weapon (NGSW) program, replacing the 5.56x45mm and 7.62x51mm. This new caliber offers significantly increased range, lethality, and the ability to defeat modern body armor, driven by a hybrid case design capable of withstanding higher pressures. The NGSW program includes the XM7 rifle and XM250 light machine gun, both developed by Sig Sauer, featuring advanced optics and suppressor compatibility to enhance soldier effectiveness in modern combat scenarios.

This video discusses the Sig Sauer MCX Spear (XM7) as part of the Next Generation Squad Weapons (NGSW) program, potentially replacing the M16. The host, demonstrating experienced authority, highlights the 6.8x51mm hybrid case ammunition and the XM157 Fire Control optic. The discussion touches on the weapon's role for the average soldier and its potential as a Designated Marksman Rifle (DMR).

The US military is transitioning to the 6.8x51mm (.277 Fury) cartridge, replacing the 5.56x45mm NATO round due to its superior lethality and range. This initiative, part of the Next Generation Squad Weapon (NGSW) program, introduces the Sig Sauer XM7 rifle and XM250 light machine gun, featuring advanced technologies like hybrid ammunition and integrated fire control systems. The new caliber aims to enhance soldier effectiveness against modern threats at extended distances.

This comprehensive guide, informed by experts Chris Bartocci and Tim from Military Arms Channel, delves into the history and evolution of the AR-15 platform, focusing on the debate between Direct Impingement (DI) and external piston operating systems. It covers the development of the HK416, Colt's piston prototypes, and the future implications of new platforms like the XM7, ultimately reinforcing the M16/M4's enduring legacy due to its modularity and refinement.

This guide covers the setup and operation of the Daniel Defense DDM4 PDW in .300 Blackout, as presented by a firearms instructor. It details the installation of common accessories like suppressors, lights, and optics, along with magazine loading and stock adjustment. The video emphasizes the PDW concept's utility and the effectiveness of the .300 Blackout cartridge, concluding with a live-fire demonstration.

This video features Tim from Military Arms Channel demonstrating the Remington 742 semi-automatic rifle chambered in .30-06 Springfield. He compares the .30-06 cartridge to the 5.56x45mm used in AR-15s, highlighting the power difference. The demonstration includes live fire at a steel target, showcasing the rifle's operation and magazine insertion.

This guide details the installation of the AR-57 upper receiver onto a standard AR-15 lower receiver, enabling the use of the 5.7x28mm cartridge. It also covers a practical modification using a Magpul PMAG as a brass catcher, demonstrating how spent casings are ejected downward through the AR-15's magazine well. The information is presented with high authority by Military Arms Channel, a recognized firearms reviewer.

This guide details how to swap the stock on a Ruger Mini-14, demonstrating its modularity by replacing a synthetic stock with a classic wood folding stock. The video features a live-fire demonstration of the rifle in its 'A-Team' style configuration, highlighting its rapid-fire capability. The host, a recognized firearms expert, provides an informative and confident assessment.