HI all, I sadly was really late to the game before I learned about the CZ452 FS (.22lr), now that I want one, they aren't around. I know the 452 is known for accuracy but curious if the 455 platform is equally accurate? Also wonder why CZ continues to build left hand 452's but not righties.

You might want to go check with the guys on Rimfire Central under the CZ sub-forum to see what they have to say.

The 455 is a worthy successor to the 452. Mine is as accurate as my 452 and I can change barrels on it should I want a .22mag or .17 Hornady.

My son bought a 452 and really likes it. The test target that came with the rifle was 5 shots into one hole (about like a single .30 cal hole) at 50 meters. His rifle shoots so well that I decided to buy one, but all I could find was the 455 The test target was about 1" for 5 shots at 50 meters with my rifle. The actually shoot about the same, .5-1.0" at 50 yards, depending upon what ammunition we use. My rifle really like the Aguila .22 LR subsonic, and will consistently shoot about .5" at 50 meters. I think you would be happy with either rifle.

I also think you will be happy with the 455.
I was happy to be able to switch between the two rounds. The .17hmr barrel I ordered from CZ fit my stock nicely and shoots so well I feel justified in buying a much better scope to enjoy longer ranges with it. Somw may not know a metal wrench to adjust the trigger is sandwiched between the trigger guard and the stock.