I have the VX2 Ultralight, 3-9X33 on one of my mountain rifles. Most of my scopes are mounted in Talley, one piece, lightweights.
Lost my footing due to some ice and tumbled a ways down a scree slope, with my rifle in hand. The scope took a few exterior blemishes, even cracked the rear Alumina flip cap. At one point during that great tumble of 2008, I even landed on the rifle, but the scope never even lost its zero. I fully expected the scope to have been a piece of junk after that fall. The scope now sits on a different rifle, but it works just fine, aside from a cosmetic blemish or two.