OK you mentioned 200-500yd shots, so that would rule out the Nikon MZ and Slughunter scopes right off the batt....they are designed for specific bullet weights and shotgun shells, so forget them plus the hash marks only go to 250 yds.
Next Barska.....holy cow Barska! I wouldnt wish them on my worst enemy!
If you wanted to go cheap go ahead and get the Nikon Prostaff but you wont have your turrets for Win/Elev.
Out of any of those scopes mentioned I could if I had to handicap myself with the Bushnell 3200 but like I mentioned earlier I would get the Leupold and send it to the factory to add turrets.