How Lethal is .300 Blackout? Supersonic and Subsonic.

This YouTube video offers a direct comparison between subsonic and supersonic ammunition for the .22LR caliber. The content likely delves into the performance differences, potential applications, and characteristics of each type of .22LR round. Viewers can expect insights into how the speed of the bullet affects factors like noise levels, recoil, and terminal ballistics, making it a valuable resource for .22LR enthusiasts considering ammunition choices.

This guide, presented by Justin from Palmetto State Armory, explains the critical role of barrel twist rate in stabilizing .300 Blackout projectiles. It details how faster twists (1:5) are ideal for heavier subsonic rounds, while slower twists (1:7) excel with lighter supersonic rounds. The information is derived from practical range testing, demonstrating the performance differences between twist rates and ammunition types.

This video showcases a custom 'Space Cowboy' lever-action rifle by Wren Metal Works, featuring extensive Ranger Point Precision aftermarket parts. The demonstration includes proper action lubrication, loading .357 Magnum cartridges, and live fire with both supersonic and subsonic ammunition to highlight its performance and sound suppression capabilities. The presentation emphasizes mechanical sounds and visual quality, indicating a high level of firearm handling expertise.

This demonstration highlights the significant audible difference between supersonic and subsonic .300 Blackout ammunition when fired through a suppressed Sig Sauer Rattler LT. The video showcases the effectiveness of subsonic rounds in reducing noise, particularly with the SilencerCo Omega 300 suppressor integrated with the SD handguard. The presenter, identified as a firearms enthusiast with clear expertise, provides a practical demonstration of this ballistic characteristic.

This review focuses on the Triton Starstrike optic, highlighting its sub-$300 price point and suitability for budget .300 Blackout hunting builds. The optic features night vision and an IR illuminator with separate batteries for each function. The video also touches on the quiet operation of suppressed .300 Blackout, allowing for shooting without ear protection.

This video compares standard supersonic and subsonic 9mm Luger ammunition from Sellier & Bellot, demonstrating their audible differences when suppressed. It explains how suppressors work and highlights the sonic crack produced by supersonic rounds breaking the sound barrier. The demonstration uses a mixed magazine to audibly showcase the effect.

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.