The CZ 527's in .22Hornet are exceptionally accurate. I had a pair over the years and put roughly 14,000 rounds through them in testing and shooting field rats. They both ran .222 50gr. velocities with 40gr. bullets ie: 3,250fps to 3,340fps. The bores mic's. 224 at the throat and .223 at the muzzles, with 16" rot. They both easily shot .3" and better groups at 100 meters.
Amazing little rifles.