What Arkypete said +1.
When my Miroku made Winchester 1886 and 1895 were brand new, it required a concious full forward stroke on the lever to eject the fired shell and elevate the fresh round for the closing lever stroke. This concious effort soon becomes an unconcious habit and the brass flys 4 feet above your head (best wear a cap or hat with the .405 and .45-90 brass) and the fresh round always elevates and slides into the chamber.

You have a really fine rifle - enjoy it.

CRS, NRA Benefactor Life Member, Whittington Center, TSRA, DWWC, DRSS
Android Reloading Ballistics App at http://www.xplat.net/