Barrel may need a few shots yet, but .22lr doesn't usually take much to settle in, I would certainly suggest trying an assortment of ammo just the same. I would be expecting Tikka to be pretty good, arguably they should match/exceed CZ for accuracy, even though CZ produces some excellent results.
My CZ is running more accurately than that, an old zeroing session, 60 yards with .22LR and 100 yards with HMR, Both CZ.
I have no need or desire to change my CZ22LR, if I did, then I would almost certainly get another CZ. But I have to admit, Tikka would be a strong contender if I f