This term refers to specific information required for handloading .300 Blackout cartridges using Hornady’s 190-grain Sub-X projectile. This data typically includes recommended powder types, powder charges (measured in grains), cartridge overall length (COAL), and expected ballistic performance metrics such as muzzle velocity and energy. Access to reliable load data is essential for safe and consistent ammunition production.
Accurate load data ensures safe pressures within the firearm, maximizing projectile performance and minimizing the risk of malfunctions or damage to the firearm and shooter. Developing optimal loads for a specific projectile and firearm combination allows shooters to tailor ammunition for specific purposes, whether it’s subsonic performance for suppressed shooting or achieving a desired accuracy standard. Precise load development has become increasingly important with the rise in popularity of the .300 Blackout cartridge for hunting, target shooting, and home defense.