How Deadly Is 5.56 At Close Range?

This video from Guns Blazing Ranch features a direct comparison between an AK-47 (7.62x39mm) and an M16A1 (5.56x45mm) in a concrete penetration test. The AK-47's heavier 7.62x39mm round demonstrated more explosive fragmentation, while the M16A1's 5.56x45mm round caused the concrete block to split into larger pieces. The demonstration highlights the distinct terminal ballistics of each caliber.

This video from T.REX ARMS evaluates the .300 Blackout cartridge's viability as an 'all-around' rifle round. While acknowledging its effectiveness in specific Personal Defense Weapon (PDW) roles and for suppressed, close-quarters applications, the assessment concludes it falls short as a true do-it-all rifle due to limitations in long-range ballistics, ammunition cost, and weight compared to 5.56mm. The review highlights practical testing of accuracy, recoil, and maneuverability with a SIG MCX Virtus build.

Elliott Delp, an established firearms reviewer, showcases the Daniel Defense DDM4 V9, highlighting its suitability for home defense and hunting. He emphasizes its out-of-the-box quality and details specific aftermarket upgrades like a Geissele trigger and Radian components, confirming its sub-MOA accuracy.

Elliott Delp compares a $6,500 'ideal' civilian AR-15 build (Geissele Super Duty) against a $2,000 budget version (PSA Sabre). He highlights the benefits of shorter barrels for maneuverability and premium accessories like suppressors and optics. Ultimately, Delp stresses that practical training and proficiency with any firearm, even a budget model, are more critical for effectiveness than the cost of the equipment.

This video from Administrative Results humorously showcases an AR-15 platform firearm paired with an exceptionally large suppressor, which appears to outweigh the host firearm. The demonstration includes live fire at an indoor range, highlighting the sound reduction and the unique handling characteristics of such a front-heavy configuration. The presenter, an influencer with high authority in the firearms community, demonstrates proper range safety and familiarity with NFA items.

This video provides a direct comparison of .300 Blackout and 5.56 NATO energy output out to 75 yards, using two 16-inch barrel AR-15 platforms and specific handloads. The analysis, conducted by The Gun Dungeon Host, utilizes a LabRadar to measure velocity and calculate energy, concluding that .300 Blackout offers significantly more energy at these distances, making it a strong contender for deer hunting where a minimum of 1000 ft-lbs is often recommended.

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.