May want to bump it up and/or down a number or two and see if it changes things. Sometimes .001 is all it takes.I'm wondering if anyone has worked on neck tension for their 6.5 gap or saum. When I got my barrel chambered it is a tight neck. Bushing I had on hand was .002" of tension. I don't think it is enough. In my bench guns I tend to run about .005" as it reduced my SD. Any help appreciated.