Well looky, I'm a fan of CZ.22's.
So am I, just have been real disappointed in the factory barrel accuracy. As indicated in my first post in this thread, there are many good features about them.
I know of one documented case where a CZ owner is less than happy with his CZ and it is posted here on CGN and RFC .
Every month or two another user with 455 issues pops up on RFC. I have a wider experience base than a single 455 rifle

However I have chosen not to post the full details on that at this time.
You bought it to do what ??
Hunt tree rats, shoot smallbore Silhouette and have a whack at the 1/2" challenge. If it couldn't do the challenge, no big deal but it should be darn close to being capable or at least outperform my semi-auto Remington 597... Seriously, it's supposed to be an "accurate" bolt gun. The accuracy provided made the rifle unfit for service doing anything other than plinking pop cans at 10 yards.
I hope your not looking to spend $3.00 a box and expect 10 round bug holes cause it aint gonna happen, you might have to spend $20.00 a box for some seriously premium brand ammo to get that kinda accuracy.
Please don't patronize me. $7-8/box SK is plenty capable of the desired 50 yard accuracy and I have a full selection of "primo" ammo for when I want to see what the rifle is really capable of or dabble in 100 yard shooting.
Now, before I really start to rant let's drop the subject there and allow the OP to give us his review on the new rifle, which I hope shoots lights out for him