Welcome! I am new on the forum too. Currently shooting and improving my CZ 455 Varmint .22 also. Have a Vortex 6.5x18x44 in Warne rings on a DIP 25 MOA adapter. Installed a DIP adjustable Sear and replaced the trigger spring to lighten the pull weight. Fun shooter and I am working through ammo to see what works best. Plan on installing pillars and bedding the action. In the future will get another barrel or cut mine and thread for a suppressor. Just an amateur but have built a few guns over the years.
Lefty19