I was looking at a local gun store website and came across a Ruger speed 6 with a 2 in. barrel (with the lettering "Rattler" on it). It appears to be Colt lettering but can't verify through Colt. Does anyone have any ideas. I know in the 80"s that a company put Colt Python barrels on Security 6's (Cougars), but this baffles me. Any suggestions?