I am considering switching my 300 WM to a chassis from a McMillian stock. I know nothing about a chassis system in terms of what is excellent, good or not worth having. Can some of you that run a chassis give me a run down on them and what I should look for? Expense will play a role to some extent, but not much. My barrel an an AMU/MTU contour if that is a concern. Thanks in advance for the direction.