Fisrt of all I have to ask a question. What is the intent purpose of this set-up? Hunting,target or self defense? I had hunted with T/C Encore with three 15" barrels. 7mmbr. open sights,7mm-08 with a Tasco 4x and 35 Whelen with a Leupold 2x. Also hunted witha 7-1/2" Ruger Super Redhawk 44mag. with a Millet Red Dot Scope on it during deer and elk season,then red dot comes off then goes onto 6-7/8" Ruger Side Slab 22lr. for spring time ground squirrel hunts. Red Dot Scope is faster to put onto target due to no power. It is good for 100yds. due to a 3moa. dot size in scope. If you are planning shooting anything over 100yds. I would recommend a 2x scope. Either in a Leupold or Burris.