Quick Hit: Is Knockdown Power Real? | GUNS Magazine Podcast #38 | Presented by Kimber

This expert analysis delves into the nuances of the Marshall-Sanow data regarding 'one-shot stop' effectiveness of handgun cartridges. The speaker, demonstrating high authority in terminal ballistics, explains the limitations of the data, such as sample size inconsistencies and the definition of a 'stop.' Key takeaways emphasize that expanding bullets and adequate penetration are crucial, and that while individual cartridge performance varies, the ability to deliver multiple accurate shots quickly is paramount for effective self-defense.

This video explores the terminal ballistics of 9x19mm ammunition by firing rounds into a catalog. The experiment compares a full metal jacket (FMJ) round with a lead-core bullet to a pure lead bullet with an antimony core. The results demonstrate the penetration capabilities of 9mm rounds through paper and the deformation characteristics of different bullet types upon impact with a hard surface.

This gel block test compares the terminal ballistics of 5.56x45mm NATO M855 Green Tip and 7.62x39mm Tula ammunition. The 5.56mm round demonstrated significant expansion and tumbling, while the 7.62x39mm round showed similar width expansion but greater length and penetration. The test highlights the distinct terminal effects of these common rifle calibers.

This video delves into the impact of bullet weight and ballistic coefficient on terminal ballistics, particularly velocity loss at range. The instructor emphasizes comparing bullets within similar weight-for-caliber spectrums for fair analysis, explaining how heavier bullets generally offer more penetration due to increased sectional density, while lighter bullets can achieve higher velocities and potentially more expansion. The demonstration involves preparing .30-06 Springfield cartridges with significantly different bullet weights (208gr vs. 150gr) to illustrate these principles.

This video provides an in-depth look at the .45 ACP cartridge, dispelling myths and highlighting its modern performance. It details the cartridge's historical context, its effective 'fight stopper' reputation, and its manageable recoil profile, especially in steel-framed firearms like the 1911. The content also touches upon enhanced .45 ACP variants and its suitability for various platforms, including submachine guns and pistol caliber carbines.

This video demonstrates the terminal ballistics of the Ruger No. 1 rifle chambered in .458 Lott, utilizing 450 Grain Barnes TSX ammunition. The demonstration, presented by a high-authority firearms content creator, showcases the rifle's operation, significant recoil from a standing position, and the projectile's devastating impact on ballistic gel. The content highlights proper handling of a dangerous game rifle and specialized testing equipment.

This guide, informed by Roy Huntington, Editor of American Handgunner Magazine, details the critical differences between buckshot and birdshot for home defense. It covers their physical characteristics, penetration capabilities through walls, and effectiveness at close range. The advice emphasizes choosing a load based on concerns about over-penetration while stressing the universal importance of training, target identification, and using a light for any home defense scenario.

This guide details the field stripping process for a 1911 pistol, presented by Roy Huntington, Publisher of American Handgunner. It covers essential safety checks, step-by-step disassembly, and reassembly, emphasizing techniques to prevent damage. An alternative 'cheat' method for faster disassembly is also demonstrated, along with advice on using specialized tools for tight components.

This video showcases an exceptionally rare find: a first-generation 1873 Colt Single Action Peacemaker, discovered via metal detecting in Arizona. The expert speaker details its museum-quality condition, dating it to 1875, and analyzes the authentic patina and wear, including specific gutta-percha grip details and muzzle wear from holster friction. The firearm's discovery context among homestead ruins adds to its historical narrative.

This guide, presented by Roy Huntington, Editor of American Handgunner Magazine, outlines an efficient '5-minute clean' for modern semi-automatic pistols like the Glock 26/27. It emphasizes that over-cleaning is unnecessary and can cause premature wear. The process focuses on targeted cleaning of critical areas like the barrel and slide rails, with minimal lubrication applied only to high-friction points. Proper function checks after reassembly are also highlighted.