.357 Magnum - My first test loads for the GP100

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 process of testing a handloaded 10mm cartridge featuring a 165gr Sig V-Crown JHP bullet and 9.0 grains of Hodgdon Longshot powder. An experienced handloader uses a Caldwell chronograph to measure velocities and calculate muzzle energy from two different barrel lengths (3.78" Glock 29 and 5" 1911), providing objective ballistic data.

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 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.

CajunBoyJake, demonstrating high authority and an objective tone, experimentally tests the common myth of revolvers blasting shrapnel from the cylinder gap. The guide details a methodical approach using various revolvers and ammunition types, including .22 Magnum, .38 Special, and .357 Magnum rounds, to determine if fragments escape. The testing concluded that only unburnt powder residue was observed, not dangerous shrapnel.

This video explores the top 5 deadliest revolver calibers, detailing their ballistic performance, practical applications, and recoil characteristics. It highlights the .357 Magnum for its versatility, the .44 Magnum for its balance of power and manageability, the .480 Ruger for wilderness defense, the .454 Casull for extreme stopping power, and the .500 S&W Magnum as a 'cannon' for the most demanding situations. Proper firearm handling and safety are implicitly emphasized throughout.

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.