I need to buy optics and a mount for my Tikka T1X. Should I get a mount with a 20mm rise over no rise? I've always been more of an iron sight guy. I have a 1-4x scope on my 30/30, and that is pretty much it for scopes. But, my eyes are starting to go. For scopes was considering something like the vortex viper 6.5-24x50 mil dot which may be complete overkill.