It being stainless & convertible has me thinking it might be a 5.5" Bisley. And if so, another win in my book. Linebaugh, Bowen, Taffin all agree that grip frame handles heavy recoil the best. I concur. But if it's the standard frame it will be OK as well.



But let's back up here a minute, The gun in question could be the flat top convertible. If so so, it's on the smaller New Vaquero sized frame but with the exception of having adjustable sites. This gun will not withstand some of the really heavy, or so called Ruger only loads. It also will not accept overly long bullets, like some in the upper limits of weight.
But otherwise, it's still plenty strong, versatile & should serve well.