seabeesbob
US Veteran
Many years ago I owned and shot a Dan Wesson, and wish I still had it, very accurate.
As I remember, there was a sort of feeler gauge supplied which was used to set the gap distance between the cylinder and the rear of the barrel.
I think there was a DW revolver chambered in the short-lived .357 Maximum (as well as a Ruger), but that cartridge was so hot it caused damage to the top strap by gas cutting at the barrel-cylinder gap. I imagine one of those DWs in good condition would be very worthwhile to have, I've never seen one.