I just spent a week shooting gophers with my 452 Varmint (.22LR) with a Yo Dave kit and a Sightron scope...and...used a 35 year old BRNO #2 with open sights for about a bricks-worth of trigger time too. My 452 is my second, I used to also own a 452 Varmint in 17 HMR and like a complete dummy, I sold that rifle. I can say beyond a shadow of a doubt, both my 452s were/are wickedly accurate once the trigger is improved a little and you know what ammo it likes. I have zero experience with the 455s, but can't see in any way how it's an improvement over the 452's design. I suspect it's a nod (as others have pointed out) to the idea of lowering production costs. That doesn't necessarily mean it's a bad idea or an inferior rifle...but in no way is it a better design than the 452.
I am (at long last) considering an Anschutz for the collection, as my older model 1450 plinker is incredibly accurate for an entry-level gun. Not sure it'll be a 64, but likely one of the HB field guns.
Only thing that has me considering a 455 at this point is the possibility of having a CZ in 17M2. Didn't know they offered a barrel in that caliber.
I am (at long last) considering an Anschutz for the collection, as my older model 1450 plinker is incredibly accurate for an entry-level gun. Not sure it'll be a 64, but likely one of the HB field guns.
Only thing that has me considering a 455 at this point is the possibility of having a CZ in 17M2. Didn't know they offered a barrel in that caliber.