I recently decided to rebarrel my 6.5-06 AI and figured since everything was custom, I might as well try to make some improvements. I was interested in the Gibbs case, but didn't like the short neck. I had Pacific tool build a reamer based on the .270w case. It has the same case capacity as the Gibbs case, but with a much better neck. Early results are VERY encouraging with 3200' with a 140 berger in a 26'' barrel. Accuracy is very good as well. Case capacity is identical to the WSM case with like brass. Anybody have any favorite data for the Gibbs or similar? Thanks/Rich p.s.I increased velocity over the ackley case with the same length barrel by 100 fps.