I just purchased a cartridge conversion cylinder for my Pietta Navy in 44 caliber. As the description stated, some minor fitting may be required, as is the case for me. With the conversion cylinder installed, the hammer does not have enough room to reset once seated on the firing pin. My question: What is the process for correcting and properly fitting the cylinder? I assume the way to fix this is by taking material off the front of the cylinder and then blueing the exposed metal, but of course I am by no means a gun smith and I’m not sure what to do. Thanks in advance!