I have classics in .375 and .458 Lott. The 458 Lott started life as a 458 Win. and I had it modified to .458 Lott. Both are remarkable rifles. The controlled feed of the classic mauser design, the adjustable trigger, large magazine, smooth action, accuracy and overall sturdiness all combine to make the CZ's very fine values. I bought my CZ's from a vendor on gunbroker.com . The prices were under $700 as I recall. Google it and you might find others. I don't remember seeing the calibers which are the subject of your inquiry.