Day 9

This guide details how to test propellant temperature sensitivity, a crucial factor for consistent long-range accuracy. It emphasizes using a reliable chronograph and testing ammunition across a wide temperature range, from cold to hot conditions. The process involves calculating the muzzle velocity change per degree Fahrenheit to understand how temperature fluctuations affect performance, enabling shooters to account for these variations in their ballistic solutions.

This video demonstrates the significant impact of primer choice on reloading results. By switching from Remington Gold primers to Federal 210 primers, the presenter observed a notable increase in average velocity and a decrease in standard deviation, even with identical other load components. The test highlights how primer selection can affect accuracy and point of impact.

This video explores the complexities of high-pressure and hybrid ammunition, featuring insights from ammunition designer Jesse (Boondock Battle Station). It debunks the notion of 'easy plug-and-play' performance gains, highlighting manufacturing challenges, potential weapon system degradation, and the need for redesigned components. The discussion emphasizes that current commercial high-pressure loads offer modest velocity increases, and the true potential lies in future weapon system development for smaller platforms.

This video from GUNBROS features an experienced speaker who argues that reloading ammunition is generally not cost-effective for most shooters, especially for common calibers like 9mm and .223 FMJ used for range shooting. He explains that mass production by companies like PMC, Magtech, and S&B offers unbeatable prices due to economies of scale. Reloading is presented as a viable option only for specialized needs such as wildcat cartridges or custom hunting rounds where precision and unique specifications are paramount.

This video, presented by firearms instructor Ted from Line45, delves into the often-overlooked performance capabilities of the .38 Special cartridge. It challenges the perception of the .38 Special as a low-power round by exploring its historical development, its evolution with smokeless powder and +P loads, and its continued relevance in modern self-defense and law enforcement applications. The expert instruction highlights practical aspects like concealability, reliability, and the benefits of reloading, offering a comprehensive look at why this classic cartridge endures.

This video from Magpul's Buck Doyle's Scoped Carbine Course focuses on practical shooting techniques for carbine platforms. It emphasizes the importance of a bare-minimum gear approach, consistent fundamentals, and adapting to environmental factors like wind. The instruction covers developing a solid shooting platform, making accurate wind calls, and improving speed and accuracy through drills and peer feedback, drawing on the instructor's experience as a reconnaissance Marine.

This guide details a successful method for removing a stuck cartridge case from a firearm barrel using hydraulic pressure generated by a high-pressure grease gun. The technique, demonstrated by Johnny's Reloading Bench, involves a custom adapter and motor oil to hydraulically force the case out. The video highlights the importance of proper tools and high pressure, showcasing a successful extraction that saved a valuable Krieger barrel.

Instruction from a firearms enthusiast and reloader on preparing and sizing 300 Winchester Magnum brass. The video details the challenges of reloading for this caliber, including the long throat of the Thompson Center Compass rifle and the importance of proper neck tension and shoulder bumping. It covers selecting collets, setting up sizing dies, using specialized tools for case maintenance, and determining optimal seating depths for accuracy.

This video provides an in-depth review and performance test of the Vortex Diamondback Tactical 6-24x50 rifle scope, presented by Johnny, an experienced gear reviewer. The review covers technical specifications, a practical tracking test (box test) at 100 yards, and optical quality comparisons with other Vortex models. Johnny highlights the scope's First Focal Plane (FFP) reticle and its value proposition for its price point, while also noting limitations in optical clarity compared to higher-end models.

This video provides a comprehensive guide to reloading .22-250 Remington ammunition, focusing on a Remington Model 788 with a Douglas barrel. It details component selection (brass, bullets, primers, powders), case preparation, powder charging, bullet seating, and initial range testing. The instructor emphasizes accuracy and velocity, aiming to develop loads suitable for varmint and deer hunting, while also highlighting potential challenges with certain components and the firearm's specific characteristics.