5.45x39mm and 7.62x39mm test on Cantaloupes

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 from Line 45 provides a comprehensive overview of 10 calibers experiencing significant price drops in 2025, making them ideal for stocking up. Instructor Ted highlights specific price points, availability, and recommended retailers for calibers like 9mm Luger, 5.56 NATO, .22 LR, and more. The advice focuses on leveraging current market conditions for cost-effective training and practice.

This video tests the ballistic resistance of a 1kg rubber mallet against various calibers of ammunition, from .22 LR to .308 Winchester. The mallet demonstrates significant resistance, absorbing or deflecting most rounds, but is ultimately penetrated by the .308. The test highlights the surprising durability of the rubber mallet against firearm projectiles.

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 video provides an expert-level analysis of current ammunition pricing trends, identifying ten calibers that have seen significant price drops in 2025. Instructor Ted from Line45 details specific price points, recommended retailers, and the practical implications for shooters looking to stock up on affordable ammunition for training and recreational use. The content emphasizes strategic purchasing before potential future price increases.

This video provides a detailed comparison between the 338 Arc and 300 Blackout cartridges, focusing on their performance in ballistics testing. The presenter, Tony D2 Wild, demonstrates and analyzes the terminal ballistics of both supersonic and subsonic rounds from each caliber using FBI-grade perma gel. The content highlights the developmental stages of the 338 Arc and its potential, while also acknowledging the established role of 300 Blackout.

This comprehensive guide, presented by AK Operators Union's Rob Ski, details the field stripping and basic maintenance procedures for the AK47 platform. It covers essential steps from initial inspection and disassembly to cleaning, lubrication, and reassembly, emphasizing common AK quirks and best practices for reliability. Rob Ski, a recognized subject matter expert, provides practical advice for both new and experienced AK owners.

This guide details the field stripping and reassembly process for the SVD Dragunov rifle, as demonstrated by an expert from AK Operators Union. It covers removing the dust cover, recoil spring, bolt carrier group, gas tube, and barrel/receiver assembly. The speaker highlights the quality of original components and the rifle's historical significance.

This guide details two critical field expedient repairs for the AK-47 platform, as demonstrated by Rob Ski of AK Operators Union. It covers using rubber bands to temporarily replace a broken recoil spring and guide rod assembly, and employing a wooden toothpick to retain the firing pin when the retainer pin is lost. These techniques are presented as emergency measures to maintain firearm operability in austere environments.

This video details the results of a 5000-round endurance test on the Palmetto State Armory AR15 Freedom, conducted by Rob Ski of AK Operators Union. The rifle successfully completed the rigorous AKOU endurance test, including the sand tornado test. While accuracy was deemed respectable for a budget platform (2.24 MOA), internal inspections revealed normal wear on components like the cam pin and bolt lugs. The rifle is presented as a solid budget option, with a recommendation to invest in a better barrel for enhanced long-range precision.