I have a 452 and one 455 currently; I have owned about 5 455 over the years and even a Brno #4; all 5 and 10 round mags worked in all refiles.I had a BRNO No. 1 - stamped on barrel and receiver that it was "55" - had a 10 round metal magazine - that magazine would fit and work perfectly in a CZ 452 Scout and a CZ 452 Silhouette - but I noticed when I bought extra magazines that retailers had a different part number for magazines for CZ 453 rifles. It was some years ago, but all of the CZ 452 mags worked fine in the BRNO and the BRNO metal mag worked fine in the CZ 452's. I never owned a 455, or 457, so I do not know about them.
I've tried the new polymer ones in my BRNO bolt rifles and they do not work.
Wouldn't latch in. I don't recall which model cz the fellow had. I was kinda disappointed was hoping for a supply of spare mags.Don't work because it's too tight? Won't latch? Won't feed?
I always thought that they were interchangeable, but I could be wrong. Maybe try a metal one (they make both). Having to do a little bit of fitting is fairly common, but not very difficult.
Wouldn't latch in. I don't recall which model cz the fellow had. I was kinda disappointed was hoping for a supply of spare mags.