Hello 1FSHNDAD!
when you mention a budget of 600$...do you include the scope and rings as well in the package?
I personnaly own a Savage Mark II TR in 22LR and love it!
I do some shoutouts with friends and they have CZ 452 varmint....
I would say out of the box in term of accuracy, both these guns are equivalent....after, it is a question of handling, quality of material used and finish etc...
If I had to buy a new 22 today, I would go with a CZ 452 FS (full stock)...I love its looks and you don't need to scope it and it is very accurate out of the box.
Conclusion IMHO...both CZ and Savage are excellent 22LR out of the box, after, it is most of the time a question of $$$
You can also check on
http://www.rimfirecentral.com/forums/index.php to get more information and opinions.
Hope this helps you.