Does anyone have or have had any experience with GA precision rifles?

Yep! George runs a first rate company, and is in demand by many in the tactical rifle venue. He built up my FN SPR.

Don

I have one of their M40A1's. It is absolutely the finest rifle I have ever owned and one of the best I've ever seen for the purpose. It wasn't inexpensive but, as they say, buy cheap, you buy twice. I figure you spend the money once and get it right from the beginning. If you're thinking of a custom rifle you can't do any better.