Re: The .455 Mark II HE.
At the very end of production of the .455 Mark II (Between April and June 1917) the Factory manufactured and shipped 703 Special Commercial Production Second Models in .45 Colt caliber. Unfortunately, the manufacturing records do not record the serial numbers of those guns. Revolver #7474x shipped on May 4, 1917 and is one of those guns. It is a 6.5", .45 Colt and there is no indication of any caliber marked on the gun.
I believe that Jim Fisher also has one of these. There are approximately 700 more out there so don't be too quick to assume that a .45 Colt 2nd Model that you find is a converted .455. Check it closely for any indications of modification by either the Factory or a private gunsmith and if you don't see any such indications, check with Roy! The odds of it being an original Factory .45 Colt would be roughly 1%.
Bob
P.S. This gun shipped to a US Mining Company.
Wow...thanks bettis1 for this clearifcation.
So...there is Hope afterall, that someday...I might find one!
If I have it straight then or do I? - there were some New Century aka 'Triple Locks' in .45 Colt, and, in .44-40.
There were some .455 Series Serial Numberings in the erstwhile 2nd Model Hand Ejector Line, which were in .45 Colt...but none in .44-40.
There were no Model 1917 Revolvers, as such, chambered in .45 Colt or .44-40, since all were in .45 ACP.
There were some so-called Model 1917 Commercial Revolvers, chambered in .45 Colt, ( which makes zero sense to me, since to be a M1917 it would have to have had the larger Head Space for the Moon Clipped .45 ACP, soi what then makes one of these a Model 1917? Would it be the Serial Numbering range?) but are there any known in .44-40?
There were some 2nd Model Hand Ejectors proper, which were in .44-40...and, some which were in .45 Colt.
Am I leaving anything out?
Do I have it right? Am I close? Or..?
Thanks!