@603country: I understand the need for high magnification when shooting small bullets at small targets at long ranges, and my .204 ruger has a 6-20x, although my swift stops at 14x.
For me, at 14X or above, the moving sight picture gets distracting - even from a bench. When the cross hairs are bouncing in synchronization with my heartbeats, then I figure that, maybe, it is too much. I guess I could stop my heart with drugs, take my shot before unconsciousness sets in, and then have a friend revive me. But that method seems at best impractical and at worst dangerous.