When I got my CZ it shot well. I kind of liked it just fine, I guess. I was loading rounds as long as possible “chasing the lands,” but still way short of them. I bought a single shot adapter from Calhoon because as I loaded the bullets out closer accuracy was increasing. The 527 extractor does not snap over the rim, it is a controlled round feed arrangement.
Holy smokes, what a difference it made when I loaded bullets out to almost touch the rifling. I was aware James Calhoun modified the magazines to handle his longer 19 caliber cartridges, so I sent mine to him and had them done.
I went from really liking that rifle to loving it.
I knew the load I was using was pretty speedy, but hadn’t clocked them. We have a couple Oehler 35P chronographs and had one set up one day to see what we were getting out of some 300 Weatherby loads and just for the heck of it I shot a 22 Hornet through the screens. It clocked at near 3,250fps. I really didn’t believe that, so I shot four more through and they were all right there.