After making some more adjustments and retorquing the action screws to my original 20"lbs. I had the opportunity to try some more shots. Groups had improved slightly, but my, now it likes 10rds to settle in between different ammo. First rimfire I've had that was that way. Maybe I'll clean the barrel before my next session and see if that makes a difference.
Hoping to soon have another Burris 6X Mini AO scope and I'll mount it on the CZ for a while before I move it over to the Kimber. Those scopes are by far my favorite scope for Squirrel hunting, plus they do quite well for me off the bench. Sure wish Burris still made them.