Mine is the Kevlar .223 Varmint and is a 1:9
If you have the standard with wood stock it will be 1:12
Some Laminate stocked ones have 1:9 but most have 1:12
I have not got around to shooting the 40 V-max in my CZ yet.
However a 1:9 will most certianley shoot 40 V-Max just fine.
This is from my old AR with a 1:9
My Savage 12FV did alot better, I'll look for a pic.