So I took my almost new but used CZ83 to the rang for the first time and had the following happen:
1. First mag, perfect.
2. Second mag: couple of rounds normal, than a string of 4-5 rounds that went brrrrppp full auto.
3. Went with mags loaded with 2-3 rounds and experienced several doubles and several cases of singles but the hammer followed the slide home and put it in double action mode instead a cocked hammer / single action.
Seems like a sear / hammer / disconnect or related spring issue but I'm just guessing. FYI, was using PPU and S&B ammo. Didn't make any difference in terms of malfunctions.
Anyone else have any experience with this disease and what the cure is?
Secondly, is there a short list of qualified gunsmiths for these older models?