Ok you admitted to using an untested load and ruptured the case, now it comes back with incorrect headspacing but was fine before. The headspacing in a 73 doesn't just change, it's a big deal to change it and requires machining and or replacing parts. Not like some kind of adjustment they can get off just removing a case unless they had some fool completely cut and rechamber the barrel trying to clean it up. It seems really doubtful Uberti did anything to change the headspacing just removing a ruptured case unless they replaced a barrel or other major part. The ruptured case incident more likely damaged the action of your gun.
How could you know it wasn't like that when you sent the gun to have the ruptured case removed if a case was stuck in the chamber?
Good luck with it they have already done more than they should be required under warranty, kudos to Uberti on that.
Because even with the ruptured case in the chamber, i could still work the lever and action and everything lined up as it shouldup until the time I sent it off the first time. The bolt went all the way into battery and the lever end lined up perfectly with the locking latch on the underside of the buttstock. When it came back the first time, that was not the case.
I went into this expecting to pay to have the gun fixed once I realized I could not get the case out myself. They decided to take it as a warranty fix to simply remove the case and polish the chamber. I still don’t mind paying for it if need be. I’m not asking for a free meal or favor. But if they want to be generous, I appreciate it.
And if you’ll recall, I was actually not trying to “work up” a load, quite the contrary I was trying to “work down” a load. Either I didn’t download enough or underloaded for a weight/type of bullet not designed for the thin case of the .44-40. But I don’t believe it was anything that should stress the frame or action. When I fired it, it felt like nothing, I didn’t even realize there was anything wrong until I ejected and realized I only got the case end. (These frames and actions can shoot .357 and even .44 Magnum now)
Had I been able to get that cartridge out myself from home, I’m quite certain I would still be shooting it today.
Needless to say, lesson learned, I won’t be trying anything outside what the manuals recommend for specific rounds by crossreferencing.
Stick to good ol 200-225 gr bullets