Testing the RM338: The 50 CAL Replacement with Unbelievably Light Recoil

The RM277, a bullpup rifle developed for the NGSW program, showcases advanced polymer-cased ammunition (.277 TVCM) offering significant weight reduction and high performance. Its unique 'Short Recoil Impulse Averaging' system effectively halves felt recoil, while selectable open/closed bolt operation enhances versatility. Ballistics and barrier tests reveal impressive penetration and energy transfer.

True Velocity's polymer-cased ammunition offers significant weight savings but faces critical reliability issues. Testing revealed inconsistent velocity, light primer strikes, and catastrophic failures in firearms with fluted chambers. While innovative, the high cost and unproven performance make it unsuitable for widespread commercial or military adoption currently.

This #SundayGunday video offers a close examination of True Velocity Polymer ammunition. As part of a recurring series, the content aims to provide viewers with detailed insights into this specific type of ammunition, likely focusing on its features, performance, and potential applications.

This review explores innovative polymer-based ammunition from True Velocity, Inceptor, Slapshot USA, and Sim-X. True Velocity's .308 Winchester offers impressive ballistic consistency with a 25-30% weight reduction. Slapshot USA's TOX 12-gauge slug and Inceptor ARX are designed for home defense with reduced over-penetration. Sim-X 9mm ammunition claims doubled velocity and reduced recoil for faster follow-up shots. While True Velocity excels ballistically, its polymer cases may deter civilian reloaders.

This video demonstrates the proper technique for loading the M1 Garand to prevent 'Garand Thumb'. It emphasizes maintaining downward pressure on the top round to control the bolt's cycling. The content debunks the idea that 'Garand Thumb' is inevitable, attributing it to inexperience and improper handling.

The Altyn helmet, a Russian titanium model, is tested for its ballistic capabilities. While effective against 9mm NATO and 00 buckshot, it fails to stop rifle rounds like 5.56x45mm and .308 Winchester. The visor cracks under birdshot impact. Despite its historical reputation, its extreme weight and lack of rifle protection make it outdated compared to modern composite helmets.

This ballistic test by Garand Thumb reveals that NIJ Level 3A rated ballistic masks, while stopping some projectiles, fail to adequately protect the wearer due to extreme backface deformation. Hits from a .44 Magnum caused fatal deformation, and rifle rounds completely penetrated. The conclusion is that these masks are largely ineffective and potentially dangerous, recommending helmets and proper training instead.

This video delves into the notorious 'Garand Thumb' phenomenon, explaining its mechanics and pain level through direct testing. It covers the M1 Garand's history, technical specifications, and proper loading techniques to avoid injury, including the 'bladed hand' method. The content also features novice testing and concludes with advice on training and firearm ownership.