I believe closest you would come would be the Winchester Silvertip bullet. The bullet is a silver color, but the case is standard brass in semi auto calibers. In the .357 mag the case is nickel plated. That combined with the silvertip bullet makes for an intersting look.
I personally use whatever bullet performs the best, regardless of color or "neat" looking HP cavities of whatever. You can't see them in the magazine anyway.
Good Shooting
RED