I think you'll also extend the life of the Rossi by not expecting too much from it. If it were mine, I wouldn't shoot super-hot loads in it. Their .38's aren't rated for +P loads, and I wouldn't think the .357 magnum revolvers would be overly robust, either.

That being said, I've got a Rossi 851 stainless-steel .38, and it's a fun little gun--reliable, accurate (adjustable sights help), and it looks kinda cool with a vented-rib barrel. Mine's a keeper.