I tested my new CZ452 Varmint Thumbhole yesterday,and with the factory trigger which was heavy,and full of creep,my 50 yard five shot groups averaged .370".I installed the $18 Yo Dave trigger kit last night,and most of the creep is gone,and the trigger now breaks at 36 ounces.The groups can only get better with the improved trigger.My Cooper 22lr averaged .400" yesterday,and my Cooper 17Mach2 averaged .330",again these were five shot groups at 50 yards.My Coopers both usually average sub 3/8",but it looks like the CZ will offer similar accuracy for a lot less money.