You will be wasting your time and money with a Tasco 3-9 for silhouette shooting, at a minimum I suggest a 4-12 or even a fixed 12power with target turrets that are repeatable so you can have a zero for each animal e.g chicken/40m, pig/60m, turkey/77m, ram/100m. Rimfire silhouette is a discipline in which you will improve and want more magnification and some thing like a cheap Tasco will soon become your handicap, go to a silhouette shoot and you will see that the majority of shooters have Leupolds mounted on their rifles, they have been the benchmark scope for a lot of years
The CZ is a quality rifle that is usually very accurate with most brands of ammo, it deserves decent optics
Edit; forgot to add don't get a scope with any reticule other than a fine duplex or a dot crosshair, you don't want the distraction of some of those rangefinding reticules which tend to be quite busy to look through while standing unsupported attempting to knock over tiny targets