The Colt 'Mystery' Conversion
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Thread: The Colt 'Mystery' Conversion

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    The Colt 'Mystery' Conversion

    Just picked this up today. Chapter 9 of McDowell's book talks about these and this is one of those. These are found in the #152xxx-193xxx range .44CF using the original percussion cylinder which leaves the walls very thin, (see photo of worn through notch), 1861 Navy conversion bbl profile (the only .44's that look like this), 'Colt's Patent' marked frame, no assembly numbers, target pattern ejector head, etc. These are believed to have been made in Mexico in the 1870's Mine is # 164344 on frame, TG and BS. Barrel and cylinder # is 168297. It has a newer wedge and I just put on the Ivories as the wood grips were a poor fit and the number didn't match anyway. These fit and look somewhat better.

    Also pictured is another mystery conversion, # 174159, that I've had for years. Missing the gate (which is hinged at the top) and ejector housing, it uses a different conversion ring and has a bbl lug profile similar to a standard Richard's Conversion. I believe it also was made in Mexico or perhaps a gunsmith job.




    Last edited by Chaffee; 03-25-2019 at 04:34 PM.
    Colt1860, mrcvs, Mosby and 7 others like this.
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    Very interesting. The worn hole is unbelievable. Thin isn't the word.

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    Quote Originally Posted by skywalker View Post
    Very interesting. The worn hole is unbelievable. Thin isn't the word.
    That was the problem with the '12-stop' model, they used the original percussion cylinders. See mine below:
    jrm, sourdough, Spudee and 1 others like this.
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    If anyone is still interested, I just took this photo showing the thickness of the cylinder walls. Left to right are the 'Mystery conversion' shown above; the '12 stop' model; and a 1st model Richards. The first two used original percussion cylinders bored out to .44 Colt, the Richard's used new-made cylinders. Holes that have wore through can be seen at 1 o clock and 11 o clock on the first two.
    Last edited by Chaffee; 03-26-2019 at 03:52 PM.
    'This is King Fisher's Road--Take the other one'

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    Wow. I wonder how many cylinders blew apart.

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    I have a First Model Richards with the stop notches worn through like that. Seems to have been a common problem.


 

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