Screwing around with different scope bases and rings recently, and I stumbled upon this problem. Maybe not a problem, as the rifle has always performed fine for me, except for one rear mounting screw that came loose one time and gave me a wobbly scope. A straight edge across the action reveals a sizeable dip between front and rear.
But now I'm all up in my head about putting undue stress on my new piece of Zeiss glass with an action that has a big whoop in it. I have a set of Talley lightweight 1-piece rings on the way, now I'm not sure how to proceed.
Don't have my feeler gauges with me, but I am going to hazard a guess and say the worst of it (at the two centre-most holes) is approaching, but not exceeding 0.5mm/0.020".
I can't find any similar problems reported on other forums, am I being a little too paranoid? Thoughts?