This specific designation refers to a cartridge loaded with a projectile weighing 180 grains, designed for the .30-06 Springfield rifle cartridge. The .30-06, introduced by the U.S. military in 1906, became a widely used sporting round. The weight of the bullet, measured in grains, significantly influences its ballistic performance. A 180-grain projectile offers a balance between trajectory and terminal energy, suitable for a variety of hunting applications.
The combination of the .30-06 cartridge and a 180-grain bullet has proven effective for taking medium to large game. Its versatility contributes to its continued popularity among hunters. Historically, this specific load has seen extensive use in both military and civilian contexts, building a reputation for reliability and effectiveness. The development and adoption of this particular cartridge and bullet weight marked a significant step in firearms technology, influencing subsequent cartridge design.