Hello to all. I have some questions about the Phillips & Rogers Medusa conversion cylinder that was made for the Ruger Blackhawk .357 revolver. Hopefully someone here has the facts and can answer these. I'm hoping to find people with experience with the pistol and conversion cylinder. Gunsmiths with experience would be even better. The best of all would be a direct contact with the inventor himself... but I doubt my luck is that good. 1 : Is the Medusa conversion cylinder able to be swapped to a DIFFERENT Ruger Blackhawk revolver? If so, what are the requirements? If not, what are the reasons? 2 : Is the barrel of the Ruger Blackhawk altered in ANY WAY to accommodate the Medusa conversion cylinder? If not, can the Blackhawk barrel be replaced, and are there any special considerations that should be made for swapping a barrel? 3 : Does the Medusa conversion cylinder for the Blackhawk use the same extractor as the regular production model Medusa M47 revolver?