Can a Ruger Old Army be converted to cartridge?

[FrontierFred]

Does anyone make a cartridge conversion cylinder for the Ruger Old Army? 

[Sir Charles deMouton-Black]

This is one source;

http://www.brownells.com/.aspx/pid=9488/Product/REVOLVER_CARTRIDGE_CONVERSION_CYLINDER

[Pappy Myles]

I have a pair of ROA's SS with 7 1/2 barrels.  I also have the KIRST conversion cylenders.  Not too bad once you learn the idoysencriences of them. ( I sure spelled that wrong!!!!!!).  When I shoot frontieersman or Frontieer cartridge, I use them.  Esp if the weather is threating to rain and I dont want to mess with bulk powder.

[Deadeye Dick]

FF,
Be sure to read the Brownell's feedback on the cylinder before you jump in.
Deadeye Dick