40 cal. 260 gr. .408"
40-65 Winchester & Marlin
When examining the old 40 cal. cartridges it becomes obvious of the competition between Marlin, Winchester, Remington, Ballard, Maynard, and Sharps. Old diameters range from .403"-.417" Single shots were different from lever guns. .408" seems to work best for this bullet intended for lever guns. Our 400 gr. is intended for single shots.