Sounds like you got a great shooting CZ 527.
I've got the Kevlar-stocked Varmint model.
It shoots under 1/2 inch average groups with at least one recipe for bullets from 40, 45, 50, 52, 55, 60, 63, 65 and 69 grain bullets.
The lighter bullets like H335 powder but they all shoot under 1/2 inch with H4895.
It's best long term average (0.306) is with 52 grain Sierra Match King bullets and H335 powder. Its 10 favorite loads all average under 0.368 inches and its top 25 loads all average under 0.45 inches at 100 yards.
CZ makes some great shooting rifles.
Try a variety of bullet weights and experiment with velocity and depth and you will be amazed by how broad a range of bullet weights it can shoot with accuracy.