Nice! Love my 452.
We have 457s and 452s and a 453. The 452/453 is the last of the ZKM series.
I think so highly of the ZKM that people think I’m joking when I say that it represents the consummate, ultimate expression of the rimfire sporting rifle theme. There are others out there like the Mauser KKW, Kimber, Cooper etc that are right there along with it, but none surpass it and a really nice ZKM can be found for $500 - $600. The others it would be a very lucky hit to pick up for anywhere near that.