There was another thread on this issue recently. In that thread I had written that I wasn't having any ejection issues with my .30-06 Black Bear I had been using low Optilock ring mounts. And it was ejecting the empties out of the way. But I did check my windage cap and sure enough there were some brass marks on it. So, even with traditional caps, there was contact with the ejecting brass.

Those low Optilock ring mounts put the objective lens right behind that big rear sight. So I switched to Optilock bases (with and extended front base) and medium height rings. That raised the scope about 8mm over where it had been. I little higher than I noirmally mount a scope but still very comfortable. I am not detecting any empties hitting the windage cap now.

[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]