Knock Down Power! BS or a real thing?

This video from Line45 discusses why smart preppers are diversifying their ammunition stockpiles away from the dominant 9mm caliber in 2026. Instructor Ted emphasizes logistics like weight, volume, and cost per round over online caliber debates. He breaks down the advantages of calibers like .22 LR for training and small game, .380 ACP for concealed carry availability, .40 S&W for its overlooked supply chain, 10mm Auto for outdoor threats, .357 Magnum for revolver flexibility, .45 ACP for predictable performance, and 5.7x28mm for high capacity and low recoil.

Sully from Line 45 outlines seven essential calibers for gun owners to stockpile in anticipation of future ammunition shortages, emphasizing their specific roles and the current market conditions. The video highlights the importance of proactive stocking for calibers like 300 Blackout, 308 Winchester, 10mm Auto, 12 Gauge, 22 LR, 223 Remington/5.56 NATO, and 9mm Luger, detailing their performance characteristics and availability challenges.

This guide details a ballistic comparison between 9mm and .45 ACP calibers at 100 yards, utilizing a LabRadar for precise velocity measurements. The analysis, presented by an instructor with high authority, highlights that .45 ACP retains more energy at distance despite lower muzzle velocity. The data demonstrates practical insights into terminal ballistics for handgun cartridges.

This video demonstrates a practical, albeit informal, test of bullet penetration through common building bricks using various firearms and calibers. From .22 LR to .50 BMG, the experiment visually showcases the significant differences in ballistic energy and stopping power. The presenter, Parker, offers an enthusiastic and knowledgeable approach, highlighting the destructive potential of each round.

This video demonstrates the penetration capabilities of various common firearm calibers through a stack of 1000 paper plates. It highlights how bullet energy and construction significantly affect penetration depth, with higher caliber rounds generally requiring more plates to stop. The experiment provides a visual, albeit informal, understanding of ballistic performance against a soft, uniform medium.

This video from Line45, hosted by Ted, outlines seven critical ammunition calibers Americans should stockpile to prepare for potential ammo shortages, referencing patterns seen in 2020 and anticipating a 2026 crunch. Ted emphasizes the importance of having sufficient defensive and training ammunition for various firearms, detailing why specific calibers disappear first during panic buying and the factors influencing supply chain disruptions. The advice is geared towards intermediate shooters and gun owners concerned with preparedness.

This guide covers the setup and operation of the Daniel Defense DDM4 PDW in .300 Blackout, as presented by a firearms instructor. It details the installation of common accessories like suppressors, lights, and optics, along with magazine loading and stock adjustment. The video emphasizes the PDW concept's utility and the effectiveness of the .300 Blackout cartridge, concluding with a live-fire demonstration.

This video features Tim from Military Arms Channel demonstrating the Remington 742 semi-automatic rifle chambered in .30-06 Springfield. He compares the .30-06 cartridge to the 5.56x45mm used in AR-15s, highlighting the power difference. The demonstration includes live fire at a steel target, showcasing the rifle's operation and magazine insertion.

This guide details the installation of the AR-57 upper receiver onto a standard AR-15 lower receiver, enabling the use of the 5.7x28mm cartridge. It also covers a practical modification using a Magpul PMAG as a brass catcher, demonstrating how spent casings are ejected downward through the AR-15's magazine well. The information is presented with high authority by Military Arms Channel, a recognized firearms reviewer.

This guide details how to swap the stock on a Ruger Mini-14, demonstrating its modularity by replacing a synthetic stock with a classic wood folding stock. The video features a live-fire demonstration of the rifle in its 'A-Team' style configuration, highlighting its rapid-fire capability. The host, a recognized firearms expert, provides an informative and confident assessment.