Can The Marines' Wonder Bullet Keep Up With The Army's? Mk318 reduced velocity gel test

This video details the historical development and global adoption of the 5.56x45mm NATO caliber. It covers the initial military requirements for a lighter, higher-velocity round to replace the 7.62x51mm, focusing on weight savings, flat trajectory, accuracy, and incapacitation. The evolution from .223 Remington and the distinction between the two calibers are explained, along with NATO's standardization and the subsequent advancements in projectile technology to address effectiveness concerns.

This video tests the MK319 ammunition at reduced velocity, comparing its performance in gelatin to the Army's M80A1. The MK319 demonstrated rapid upset and fragmentation, creating a significant temporary stretch cavity despite its lower velocity. While it did not penetrate as deeply as some other rounds, its tissue damage potential was noted as impressive.

This video details a ballistic gel test of MK318 SOST ammunition fired at a reduced velocity. The test aimed to replicate previous M855A1 testing by loading the MK318 over 21.5 grains of RL 15 and firing it from a 14.5-inch M4-style rifle. The results showed significant fragmentation and disruption, with the bullet core recovered after penetrating multiple gel blocks. The speaker estimates the reduced velocity to be around 2450 feet per second, consistent with fragmentation thresholds for this ammunition.

This video provides a detailed comparison of several 5.56x45mm NATO ammunition types used by the US Navy, focusing on their terminal ballistics and penetration capabilities. The Mark 255 Mod 1, featuring a compressed copper polymer core, is highlighted for its rapid fragmentation and potential for large wound channels, while the M855A1 is noted for its extreme penetration. The M855 Green Tip and Mark 262 Mod 1 are also tested for comparison.

This entry details the performance characteristics of the M855A1 5.56x45mm NATO round, as analyzed by Dirty Civilian. The analysis focuses on terminal ballistics in ballistic gel, highlighting expansion and fragmentation patterns. Key technical insights include its higher operating pressure (+10,000 PSI) and its design objective to achieve higher velocities from shorter barrels.

This video details a comprehensive ballistic testing of the Premier Body Armor Fortis Level III+ GT plate, a NIJ RF2 rated armor designed as a lightweight alternative to Level IV plates. The testing involves multiple rifle caliber threats at close range (25 feet) and extended distances (100 yards), evaluating penetration and back face deformation. The plate demonstrates impressive performance against common threats like 5.56x45mm and 7.62x39mm, while also showing its limitations against higher-level threats at longer ranges as expected.

This video features a critique of a home defense AR-15 build by former Navy SEAL Jeff Gonzales. Key takeaways include the importance of a suppressor for indoor use, the critique of an overly complex sling, and recommendations for reliable optics. The discussion highlights the trade-offs of short-barreled rifles (SBRs) for home defense and emphasizes practical gear selection over complexity.

This guide details the tool-less field stripping process for the Beretta ARX-160, as demonstrated by a Beretta factory representative. It covers the quick-release barrel, stock, trigger group, and bolt assembly, emphasizing ease of maintenance. The representative highlights the rifle's modularity and ambidextrous features, noting its current military availability with future civilian plans.

This entry details the Fostech .50 Cal Drum Magazine, designed for Barrett M107 and 82A1 rifles, featuring a 20-round capacity and billet machined aluminum construction. It also touches upon the Fostech Rader .308 rifle. The information is presented with high technical focus from a manufacturer representative.

This video from ARFCOM News details a ballistic gel test of Remington's 158gr SJHP .357 Magnum ammunition fired from a 16-inch Rossi Model M92 carbine. The test highlights how carbine-length barrels significantly enhance .357 Magnum performance, achieving velocities comparable to some .300 Blackout loads and demonstrating substantial penetration and expansion in ballistic gel. The analysis touches on terminal ballistics theories and the unique behavior of high-velocity pistol rounds fired from rifles.