Have two Nikon Prostaff scopes on rifles. I took a Zeiss off one and put the Nikon on a few years ago. That should just about say it all. Both rifles are .308 and I had one on my muzzleloader for a few years until I sold the mzl, scope and all and got a new one. The scope on the new one is a fixed, 4X something or other and is deadly out to 250-yards which is as far as I can see these days.