Burch-
OK now it gets a little sticky. I need to retract a statement I just made. I checked the fireformed cases in 'all' the chambers - I have two 41 revolvers and a rifle, and they will go but are sticky. Remember, these are 30-30 cases fireformed for the 41mag, but the relationship should hold true to a degree anyway. I stuck them up my 38-40 (401) sizer until the shoulder touched, and just a shadow of change in the shoulder allowed an easy fit. I know, I'm changing the shoulder shape a touch, but I don't see the point in having a die custom built for this for what I'm doing with it. When it goes commercial is time enough to go there! LOL! Note: I did try full-length sizing in the 41mag die, and it fit the body fine, the extra length appears not to be an issue - yet. So, makes the issue area the neck or neck-shoulder joint area. I believe it to be the neck-shoulder joint and setting the shoulder just a touch seems to be the ticket - so far.
Want to share the royalties - or just keep them all to yourself!!! LOL!!!!
Back to the 444's. If you (maybe Stimpy can help here) found a wildcat loading a 44 (429) into a 454 or 460 case, that would likely be the right sizing die to be 'hassle-free'. Lacking that, possibly a 44-40 sizer used judiciously. I just ran a 444 into my 38-40 die and the body is fine - of course it's the wrong neck size, but the point is the shoulder is what is hanging you up, I believe, so a 44-40 might be the number to 'adjust' your shoulder and allow the fit as the neck size of the 44-40 should be about right for your cylinder. I'm thinking a 44mag/spl sizer might work also - there isn't a shoulder area in the die, but the body of the 44 might just touch your shoulder enough to do the job. Of course, it's possible that the 44-40 might do all the sizing necessary, body and neck. That would be my choice, given no further input than what we have at this point.
The Experimenter is in the house!
Let me know how all this shakes out.
Regards,
Sweetwater