I have a Leupold 1-4x variable in conventional Warne rings on my .450 and has held up great. I am a big guy, but have a long neck, so eye relief is critical for my build. No problems, never been whacked once, and the scope has held up great for 600+ heavy handloads. Ghost Rings are fast, but I needed (or wanted) more precision. As far as red dots go, good ones (Aimpoint, Eotech, etc cost more, but are tested and guaranteed). cheap ones OK for rimfires, etc, but not for a kicker or a hunting rifle, in my opinion.