Rechamber a 44 to 45 Colt?

[Axehandle]

These 45 Colt Dans are so hard to find..  I'd think that the 44 would make a nice tight chambered 45 Colt.  Any of you guys having them made?
 

[Lonegun1894]

I think this sounds like a great idea, as you would be able to get correct dimensions all around, but I would hate to get the bill for the work.

[Tom C.]

Great idea if you have a source for barrels. Apparently they are much more difficult to find than .44. My 744 is quite tight. I had to ream the throats to open them up appropriately. A tight .45 would be nice. Perhaps when DW puts the 744 back in production, they may put the 745 in production, too.

[Axehandle]

While an existing barrel would surely save a few bucks the frame end threads would be wrong wouldn't they?  Current plan is to have a custom Douglas 45 barrel turned to proper diameter and threaded.   We are boring a 357 barrel to 41 for a 414 and considered doing the same for a 45 but I'm hearing it would take a very long time to get it done. 

[Reed1911]

Frame threads are all the same for the large frame. I'd just buy a blank turn it to the proper size and thread it. Re-chambering the cylinder will be harder than the barrel work. Same goes for the .357 to .41, why bore and re-rifle when you can just turn a new one down (unless that was a typo and it is the cylinder you are re-boring).