I've been using a leupold Vari-X 2 for years on my 270 without any problems and it's the old style that doesn't have the "click" adjustments for windage and elevation, it has the friction adjustments. I'm getting ready to purchase a scope for my AR and was planning on the VX-2 1-4X. I've found a used one with the friction adjustments but was wondering if the hammering action of a semi-auto would cause the zero to drift. Any experiences? Just as a point of reference, I'm told that the new VX-II's have click adjustments like the VX-III's have always had.
Thanks,
Jim