This specific cartridge designates a .223 Remington cartridge loaded for use in the Winchester Super Short Magnum (WSSM) family of rifles. The numerical value, measured in grains, refers to the projectile weight. This relatively light projectile contributes to higher velocities, resulting in a flatter trajectory. This flatter trajectory translates to less bullet drop over longer distances, potentially increasing accuracy and effective range, especially when compared to heavier projectiles in the same caliber. The WSSM cartridge family, though less common than other .223 Remington variants, was designed for increased performance compared to standard .223 Remington loadings.
The advantages of this lightweight projectile combined with the higher-pressure WSSM case contribute to its appeal for varmint hunting and certain competitive shooting disciplines. The higher velocity delivers significant energy on target, while the flatter trajectory allows for more precise shot placement at extended ranges. However, the WSSM cartridge family has seen limited adoption due to factors such as shorter barrel life and increased recoil compared to standard .223 Remington loads. The relatively niche market has also contributed to generally higher ammunition prices and reduced availability.
