RE: buying a scope ques..
Semi - I would also look into the Burris Fullfield II line. I have 3 of them in the 3 -9x and they are nice and clear and the ballistic plex works great.
I also just purchased a Nikon Prostaff 2-7x for my muzzleloader. It has the BDC reticle and is also clear and sharp.
For the use you plan on giving your scope, I think the 3-9 will serve you well.