Reloading 101: All About Primers

This review of GROM 7.62x39mm ammunition from Poland, imported by Atlantic Firearms, details its performance over 1000 rounds. The ammunition is remanufactured surplus with lead cores, lacquered steel cases, and corrosive Berdan primers. While it proved reliable in standard 16-inch AKM platforms like the WASR-10 and Egyptian Maadi, it exhibited significant issues including failures to fire and stuck cases in short-barreled AKs such as the Riley Defense Krink. The ammo is noted as dirty-burning and corrosive, requiring immediate cleaning after use. Despite its drawbacks, it's considered a viable budget option for compatible firearms.

This video compares 7.62x39mm and 300 Blackout, focusing on reloading considerations and platform compatibility. The speaker, a firearms enthusiast and reloader, highlights that while 7.62x39mm may offer slightly higher velocity, 300 Blackout presents advantages for AR-15 users due to smaller rifle primers, wider bullet selection, and standard AR magazines. The diminishing availability of cheap steel-cased 7.62x39mm ammunition has narrowed the cost gap, making 300 Blackout a more appealing option for many reloaders.

This video from Active Self Protection, featuring John Correia and Mike Willever, analyzes a critical incident in Fort Worth, Texas, where officers engaged an armed suspect. The analysis highlights officer tactics, equipment, and critical decision-making under extreme stress. It emphasizes the importance of maintaining offensive pressure, accurate shooting under duress, and crucial safety protocols like 'priority of fire' to prevent friendly fire incidents. The expert commentary provides valuable insights for law enforcement and self-defense practitioners.

This comprehensive evaluation of Malaysian L2A2 7.62x51mm ammunition, presented by Ian McCollum of Forgotten Weapons, delves into its historical origins, manufacturing details, and performance characteristics. The review highlights the ammunition's adherence to NATO-style specifications, its production by SMEO through an international joint venture, and its technical components. Performance data, including average bullet weight and muzzle velocity, is presented with statistical analysis, offering a technical comparison to other 7.62x51mm variants.

The Berdan II, a single-shot bolt-action rifle adopted by Imperial Russia in 1870, served as a crucial predecessor to the Mosin-Nagant. Designed by Hiram Berdan, it features a unique cock-on-closing bolt mechanism and volley sights marked in 'arshins'. Despite high production, these rifles are rare in the US, showcasing significant combat history before its successor.

This video provides an expert-level assessment of Wolf Gold .223 ammunition, featuring detailed performance data. The analysis includes chronograph velocity readings, 100-yard accuracy group measurements, and reliability testing across various platforms. The speaker's high authority level is evident through systematic testing methodologies and technical component analysis.

This video provides an expert-level overview of a heavily customized AR-15, nicknamed the 'Zombie Destroyer', built for a thematic zombie apocalypse scenario. The build features an extensive accessory loadout including multiple optics, lasers, and flashlights, along with a high magazine capacity. The demonstration includes rapid fire, engagement of Tannerite targets, and unique shooting techniques, showcasing the rifle's capabilities and the instructor's proficiency.

This video details an extreme AR-15 meltdown test, pushing a custom build to its limits. Expert instructor Eric demonstrates the process, highlighting component durability and failure points under sustained fire. The test concludes with a catastrophic barrel failure after 830 rounds, providing valuable insights into the platform's resilience.

This guide details the process of conducting an extreme durability test on an AK-47 variant, specifically the Definitive Arms VEPR, as demonstrated by Iraqveteran8888. The test involves sustained full-auto fire to induce critical heat failure, followed by inspection of components like the barrel and gas block. The expert assessment highlights the rifle's resilience, lasting 895 rounds before failure, and compares its performance to other platforms.

This guide details a 700-round rapid-fire stress test on a Yugo M92 PAP AK-47 variant, demonstrating the platform's legendary durability under extreme heat. Performed by Eric from Iraqveteran8888, the test highlights safe handling of overheated firearms and concludes with a tribute to Mikhail Kalashnikov's engineering legacy. The firearm successfully completed the test despite significant heat buildup.