Not getting many answers on brands of spotting scopes, so let's try another question. I want to use a spotting scope for sighting in rifles between 100 to maybe 300 yards and for hunting both large game, predators and varmints, like prairie dogs. I was looking at 20 x 60 x 80 scopes, but can get a pretty good deal on a Vortex 15 x 45 x 65 angled scope. I also can get the larger in a straight scope, but since I have a bad neck I thought maybe the angled would be better, but I don't know. What do people think?