Vapodog, I didn't realize you were a very knowledgeable gunsmith building guns for yourself. It was just a couple years ago you were asking simple bedding and reloading questions. You must have really learned quite a bit in the last few years. As I have. Good to hear your a gunsmith.

I have had case separations from loading too many times. Never saw a claw extractor or any gun have a action fall apart from it. I understand the quesiton was strongest action, but if building a custom, action strength of modern actions is a moot point. I would look for features you require instead.