I have seen fewer failures from the Leupold 1.5x5 and 1x4 than any other scope, so thats what I use on all my DRGs...and I use Talley QD rings and bases and all my guns have a set of good quality iron sights of one kind or another....I am a firm beliver in a 20 MM objective that does not protrude out too much from the front scope ring as that makes them much much less likely to get knocked out of zero. I see big belled scopes getting knocked out of zero every single year, they cannot take a wack...and Safari life and trucks is not easy on guns.