A post 64 in 44-40......when the action is worked, rather than the cartridge lining up to the chamber, it jumps up and ends up pointing straight up. Rim of the brass is still below the cartridge guide. Whats going on?
In a word...Winchester. A very common trait of these guns, both mod 92's & 94's. The speed at which you work the action, the ammo length, bullet weight can all make these guns react in the way you describe.
I would have to disagree with this post, I have more than a dozen original 92s which all feed 100%. The post 64 variants however are a different critter, as are all the 92 copies except the Miroku which functions flawlessly (I have one in 44Mag)
OP.........Your problem could be any number of things, but likely is a bent cartridge lifter, or worn or bent magazine cartridge stop. I have a pre 64 mod 94 in 44-40 which works 100%.........very rare rifle.