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.
40 cal. 260 gr. .408"