Re: Actions
I don't think you will see much of a difference, I have no experience personally taking them apart, but I have heard that if no anti-seize is used the two materials can at times be difficult to take apart. This may have been from being improperly torqued or no anti-seize, just something I heard...
I don't think you will see an accuracy difference using a stainless barrel and a CM action.
Maybe WNRoscoe will weigh in on what I have said above about the two materials