I have a blued Mitchell SAA .45 with a 5.5 inch barrel, Uberti markings. I bought new in 1983.
I used it in the early 80's to do gunfights on the streets of Pioneer, Az north of Phoenix,(this is really punishing on a firearm with drops and falls) by the late 80's I was shooting CAS matches. I still shoot CAS matches with it,
no telling how many rounds of 5in1 blanks, BP and smokeless rounds have been sent down range. In almost thirty years of more abuse than revolver should be subjected to the only maintenance beside thorough cleanings,
is to replaced the mainspring one time (it broke just above the screw hole).
Watch your topknot