The single actions have an ejector rod that you manually push to remove each case. No digging required.The few (and very few) revolvers I have seen that did not require moon clips had a little extension piece built into the ejector star. They worked ok for shooting, but really did not work very good ejecting. I ended up holding the ejector out with one hand and digging the brass out with a knife. Kind of slow for tactical reloads.
On the other hand, my moonclip S&W 625 works perfect every time. If I were wanting to have a 9mm revolver made it would be moon clip all the way.