For the past few years, mine has had Leupold bases & super cheap "Ironsighter" rings. /ubbthreads/images/graemlins/blush.gif
(base pieces actually came from 2 sets of bases for Remington 700...too long a story) /ubbthreads/images/graemlins/smiliesmack.gif
I keep planning on replacing at least the rings with Warne's, but never have. /ubbthreads/images/graemlins/tongue.gif
I admit to only checking my zero in late Summer (right before hunting starts). But I have not had to reset it once since I first sighted-in when the gun was new. /ubbthreads/images/graemlins/grin.gif
Have put probably about 400 rounds thru the gun.