RE: Burris or Bushnell?
I have burris Fullfeild II scopes on my 22-250 w/ballistic plex, and 3-9x40 plex on a 35 whelen. I have always been very impressed with burris optics. I used to have a Elite 4200 6-24x40 that was a great scope also. I am not sure what kind of warrantee the Bushnell have but I will vouch for the burris "forever" warrantee. Either scope will work just fine for you but the 2-7x33 might be a little more compact, big scopes have no place on shotguns. I would look around for a 1.5-5x20 or something in that range for a shotgun myself. Good luck.