This specification refers to the precise measurements and parameters required for assembling a cartridge for the .270 Winchester Short Magnum (WSM) rifle, using a 140-grain Nosler Accubond bullet. This information typically includes recommended powder types, powder charges (measured in grains), cartridge overall length (COAL), and other critical details affecting accuracy, velocity, and pressure. These specifications are essential for safe and effective handloading of ammunition.
Accurate load data is crucial for achieving optimal performance and safety when handloading. Using precise measurements ensures consistent bullet trajectory and velocity, maximizing hunting or shooting accuracy. Furthermore, adhering to established load data helps maintain safe pressure levels within the firearm’s chamber, preventing potentially dangerous situations. The development of specific loads, such as this one, is a result of extensive testing and refinement by experts to ensure consistent performance for this particular combination of caliber, bullet weight, and construction.