I recall reading years ago that Wyatt Earp was carrying a S&W American .44 during the shootout, not a Colt Frontier .45.
Earp had many guns over the years of his life.
My grandfather spent a few years in Texas and N. Mexico around the turn of the century, and came home with a S&W 44 that he had someone load cartridges for. He bought it from someone who told him it belonged to Earp. He took very good care of it his whole life, and actually shot a couple of deer with it. He let me fire it once, and I thought it broke my wrist. Kicked like a mule. It was a SW American, and I think it only held five shells, and broke down to load. When you “broke” it, it ejected the empty casings.