My 338 moose killer has a leupy vx2 3-9, been on their for probably 15 yrs at least. Been beat up on the atv, killed a lot of moose, I can't remember the last time I adjusted it. Admittedly I dont shoot it much, but every year it puts a couple within an inch about 2.5" above the bullseye, then i go kill a moose at anywhere from 75- 426 yds. I've been thinking to switch it out for a 30mm dialer, but haven't brought myself to do it yet.