Winchester spherical powders are known for theirconsistent burn rates and clean burning characteristicsand are widely used for reloading shotshell,handgun, and rifle ammunition. Excellent powder for loading 223 Remington because its lower flame temperaturehelps extend barrel life. Works well in a broad range of rifle calibers from 222Remington all the way up to 458 Winchester.
Sinclair, Issue:5A, Page:099
Sinclair, Issue:5B, Page:099