1858 will not take conversion cylinder...

[Cowtown]

I have a 6 shot conversion cylinder that works great in one of my Pietta 1858s but the same conversion cylinder will not "roll" into place into another Pietta 1858  like it is supposed to do. Is the hand too long? Hand spring too stout? Any other suggestions?

[Back Roads]

I acquired an R&D conversion cylinder for my Pietta 1858. When I first tried to put it in it would not fit. I had to remove a little metal from the base of the frame below where the barrel screws in. Before I removed the metal the face of the cylinder was was just slightly too large to fit. The rear of the cylinder was fine.
Hard to tell if this is your problem without seeing your frame and cylinder. Since you have a revolver that the cylinder does work with why don't you lay them side by side and do some measuring to see what the difference is.  I don't think your problem will be with the hand or the spring. 
I'm just an amateur that has been working on my own guns for years. Maybe some of the real gun smiths will chime in with their thoughts.
Hope this helps.

Back Roads

[hawkeye2]

Ditto to what Back Roads said.  I had to file out some metal in front of the bolt on an older Pietta 58 to get the cylinder in (R&Ds have a larger OD). 

[Coffinmaker]

Without being able to fondle it, turn it over in my hands and say ...... ah hummmm, I got nothing.

Coffinmaker

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