Bought a mounted but never shot 4200 last week, got here yesterday. So far I'm very pleased, and I hope to shoot with it soon. Should be able to get almost 700 yards on 24x, and 900 on 12x, although that is further than I can shoot at that magnification on a small target. The only thing I am not happy with is they state 50 moa elevation and windage, and I'm only getting mid 40's for elevation. Not a big deal, but 5 extra MOA was expected. Mounted with +20 MOA in Burris Signature rings from Buffalobob I have 24 MOA of "up". I'm going to have to invest in a canted base as well since inserts aren't available for the 30mm rings. I'll say sorry for the pics in advance, they're off my cell phone so they might not be crystal clear. Here is the scope on my 6mm Ackley, I think the size is pretty proportional to the gun- The elevation and windage knobs are very good, at least to me. I haven't gotten to mess around much with the top end scopes, but I will have a Leupold Mark 4 here soon to try it out against. The markings line up exactly, which makes me happy, I like them being perfect, unlike my last scope on this gun. The knobs also fit my hands very well, and I have "average" hands I'd guess, so they should be fine for most people. The clicks aren't very loud, but that may be because of grease in there. I will take off the knobs and report back.