That is no small feat at all. I normally shoot handguns at half that distance.
I may could hit one of the large gongs, but I sure wouldn't feel comfortable or confident in headshot territory with a 6 or 8 incher. Especially 5 for 5 at 50 yards.
CZ does make a really nice handgun. There are several CZ owners on this forum. And for good reason.
I have one of the Tristar Canik S120, which is a loose copy of the cz75. It's a really nice shooting and handling handgun for sure.