I am no stranger to CZ's. I have four 452's, and have had others both in 452 and 455 variety. I have shot both sporter and heavy gun matches at more than one place for a number of years. Guess what always wins the sporter matches?...A CZ....Why? Because 9 outta 10 guys are shooting a CZ...lol..Once it comes to factory barrelled heavy guns or guns that can be modified, it all changes. I have seen more than one guy try to modify a CZ with a barrel, trigger, stock float job, bedding job, Harrell tuner, mechanical rest, and so on to try and find a winning combo. I have yet to see one consistent enough to run in the top scores with the Anschutz 54, Remington 40, Winchester 52, and all the custom action guys....Sure, the CZ may shoot a good score every now and then, but not with the consistency of the other guns.