This refers to specific information regarding the propellants and projectile combination for the .270 Winchester Short Magnum (WSM) cartridge. Specifically, it relates to the Hornady 145-grain Extremely Low Drag – eXpanding (ELD-X) bullet, a precision projectile designed for long-range accuracy and terminal performance. This data typically includes recommended powder types, powder charges (measured in grains), cartridge overall length (COAL), and expected ballistic performance, such as muzzle velocity and pressure. Such information is essential for safe and effective handloading of ammunition.
Accurate and reliable information about this specific cartridge and bullet combination allows handloaders to optimize their rounds for specific purposes, from long-range target shooting to hunting. Properly developed loads, based on reliable data, contribute to consistent accuracy, manageable recoil, and predictable terminal ballistics. This contributes to ethical hunting practices and successful long-range shooting. Historically, handloaders relied on published manuals and personal experimentation. Access to comprehensive, readily available data represents a significant advancement in the pursuit of precise and effective handloads.