I also have an A7 .300WSM Stainless, with the same issues. I've gone to high rings with a Leupold scope due to their lower/flatter windage caps, and now it works right about 95% of the time. Problem is, the scope is higher than I'd like it. I have a T3 in .270 that has had no problems. The difference is that the T3 has a closed top on their actions, while the A7 is open. That will obviously affect ejection.
