I received an Altitude stock from Mesa for my Tikka T3x, with the factory 300WM stainless barrel. I mounted it and the stock contacts the barrel. I love the stock, but it is frustrating that I waited months for it and will likely have to send it back. If it was fiberglass, I would sand it. But, as I understand it, carbon fiber needs to be sealed after sanding. Anybody else have this problem? I will contact Mesa tomorrow and see how they want to handle it.