Win M92 feeding problem

[hiram]

Caliber is 44-40.  The case mouth hangs up on the breech of the barrel when feeding shells from the magazine.  I plan to try this on 5 cases, but I just want feedback on the idea of trimming the brass back .080-.100" to improve cartridge feeding.  If you have a definite answer to this problem, lets hear it.   I am using the 427098 bullet and the roll crimp on the Lee bullet seating die.  Thanks.

[Dee]

Are you saying that as the cartridge mouth is hanging up on the edge of the chamber as the bolt is closing? If so it is probably hanging up on the top of the chamber. If I am correct in understanding your problem the solution is to either take a fine rattail file or a small dremel wheel and barely touch the upper edge of the chamber to knock the sharp edge off it. As long as you do not go into the chamber it will in know way weaken the rifle chamber. It will only dress the sharp edge down. If I misunderstood ignore me.

[Bitterroot Bob]

I know exactly what you're talking about.
The bullet you're using has a very long ogive and most crimp dies don't crimp the brass enough to form a smooth transition from lead to brass. I spent a whole SASS match extracting cartridges with the case mouth folded back, or holding the 1873 rifle upside-down so the case mouths wouldn't catch. Halfway through, Double D Red gave me a box of his BP loads loaded with Meister bullets and I was able to shoot like a normal person. I've tried RCBS, Lyman (even the 310 tool dies), and the Lee factory crimp die, and nothing seems to crimp enough. Maybe try a cut-off .41 Mag die?
I still use the 427098, but only for BP loads and only when I have enough time to use an antique Winchester hand-loading tool to crimp each cartridge. The only other alternatives are:
Seat the bullet out another .10", but then it may not feed.
Trim your cases about .10" and load to recommended OAL.
It might be time to consider the Lee (I dislike aluminum moulds, but I make this exception because I like the cavity) two-groove 200-grain .44-40 mould. It has a crimp groove in the proper location and holds enough grease to keep the fouling in check for at least 20 shots.

Good luck with it. There's nothing wrong with your rifle.
Bitterroot