Originally Posted by bruce_ventura
Are you sure parallax was the problem with the VX-III? Could it have been a mounting issue or a problem with the scope holding zero?
My rifle custom build gunsmith did the VXIII install, torqued the rails and rings all down and obtained a repetitive zero for me. With his younger eyes and wealth of F-Class and open F-Class competition experience (won many), he was able to get consistent .5 MOA groups from this scope. However, the 100yd. parallax may still be a little off and my inexperienced eyes just couldn't maintain a steady straight on sight picture with the reticle.
The scope change (VX6) allows me to lock in the reticle POI, no matter my off center eye placement, and really is the only variable we changed with my hunting and ballistic setup. If I ever change scopes in the future, it will definitely have parallax adjustment!