I have 5 CZ's,, 3, 452's and 2, 527's. The first 527 I bought was a Hornet. I have several hornets including an old winchester m54 and an older Kimber M84. The CZ was the fullstock version without the set trigger.. With almost any load it will shoot under 3/4 inch... No load developement fun there and the fullstock guns don't shoot as well as the standard one's!! the second was a 223 in fullstock with the set trigger.,.(love those fullstocks!!!!!). It too was under 3/4 with just about any sane(some not so sane) reloads put up in military brass!!! I bought spare magazines because I will keep these rifles. I use these as my carry rifles around the farm on the ATV(they share the task with an old M722 in 244). Coyotes, feral cats. ground hogs and any other needy pests succomb just fine... I love those rifles! I next want a 550 in 7x57 with the fullstock.... Best Hornet I've ever worked with, and that includes the NEF, Kimber, and Ruger77/22Hornet.. (the first of the 77 hornets were a real trip, poorest accuracy I've every seen in a new factory rifle).. You'll never regret buying the CZ and the 223 is a great little round.. I'd buy another in 222 Rem but I've already got 5 rifles in that caliber and they all shoot just great..