The Winchester 760 powder blend is an exact replica of the 30-06 Springfield factory load. Because it flows better than other propellants with the same burn rate, 760 is used in cartridges like the 22-250 Remington, 300 Winchester Magnum, and 300 WSM.
Western Cartridge Company, the forerunner of Winchester Ammunition, was awarded U.S. Patent 2,027,114 in 1929 for the “Manufacture of Smokeless Powders.” Western Cartridge Company quickly launched the Ball Powder® brand to market their smokeless propellant. The technological advantages of the BALL POWDER® process over conventional extruded-type powders were quickly exploited by ammunition manufacturers and the United States military. Among the numerous benefits of BALL POWDER® propellant are:
• Stable long life – in some cases exceeding the capability of extruded powders
• High density – ideal for rifle calibers. Yet the BALL POWDER® process is capable of density adjustment to also create high-performance pistol and shotshell powders
• Adjustable chemistry – allows the powder to be tailored to specific cartridge applications through chemistry as well as geometry.
• Lower flame temperature – allows longer barrel life