In Texas, I shot for qualification with a rented 9MM semiauto but I own only 4 revolvers. Like the previous poster said, if you qualify with a SA you can carry either, if with a revolver then your CHL is valid only for a revolver. I think the minimum calibre is 32 or above, not sure. I have 2 38's a 44 Spl and a 45.
The CHL is valid only for handguns, no other weapon, and no limit on the number as long as one can conceal them.