Puma is a registered trademark/brand name by Legacy Sports in Nevada, one of several US importers who bring (or brought) in the Brazilian-made Rossi leverguns. Each importer (EMF, etc.) contracts with Rossi for their own in-house models & brands.
Legacy imported the Rossi Puma for several years, then in the last year or so switched to the Chiappa-made 92 leverguns made in Italy. They carried on the Puma brand, applying it to the Chiappas.
The Chiappa 92 is truer to the original Winchester 92 in external frame lines & machining, uses very nice walnut instead of the Rossi mystery wood, is well-fitted and is made in a modern plant in Brescia on CNC machinery.
Chiappa says the 92 line is built almost entirely from parts fabricated in house.
Workmanship, from the samples I've seen, is typically better over all than the Rossis.
Rossis usually come fairly rough & oversprung.
Rossis now come with an irritating wing safety on top of the bolt, Chiappas do not.
I have the Chiappa Bounty Hunter "Puma", one very nicely built gun. (Also quite accurate, by the way.)
I have a Rossi "Puma", also a nice little 16-inch carbine, AFTER Steve worked over the action.
I'm dickering for one of the Ranch Hands, and if it comes through it'll go to Steve for some work.
And, finally- If it has to be "practical", you obviously don't understand the gun.
The Mare's Leg was the single most iconic handgun on TV 50 years ago, possibly rivalled only by the U.N.C.L.E. Special in the mid 1960s, and for those of us who watched it in McQueen's hands back then, that's reason enough.
Denis