Yes, I'd say you have a parallax issue. I even dial it out when shooting ground squirrels with the lowly 22 LR. For young squirrels that are only 1/2 inch wide and a variety of shooting postions, it can have a signigicant effect when ranges vary from 5 to 150 yards or so.
I will not put a scope on any rifle that I expect to reach out that does not have some means of correcting the problem.
