Hi! I'm getting a Sako Quad with exchangeable barrels. First I'm gonna get a 22lr and later maybe a 17hmr. I just went with a 3-12x scope. I came across a nice scope: Simmons 3-12x40 Pro Target It said something about ballistically calibrated turrets for a 17hmr although I have no idea what that means. I'm guessing besides normal MOA marks it also has marks on the turrets for different distances? It's not something I looked for in a scope it just has it. Will I have any problems with the scope? Or is it what I said, besides normal MOA markings also predetermined positions for different distances? From the images supplied on amazon I can't really see anything different on the turrets. If you have any idea about this "Calibrated Turrets" thing please let me know so I cancel the order while I still can. As I said first I'll be using a 22lr barrel. http://www.simmonsoptics.com/riflescopes/ProTarget.cfm Also it says it has side parallax adjustment on the specifications list, yet on the features list it says "3-12 & 6-18 will have side focus". So what does it have? Thanks, Tom EDIT: I hope this doesn't mean I'll have to count clicks. I hate that.