Is there a sticky that details which actions and bolt heads work together? I've seen one instance where a magnum bolt head did not work with another magnum action, but the details were unclear (to me).

I've read a bit about the magnum bolt face and its different ejector. Can this bolt face be put in any of the actions? Essentially, can I put a magnum bolt face in a Savage 10 like my 10 FCP HS? I like the matte black finish.

This leads into another question. Is there somewhere I can find all the port lengths for various actions if they are not the same for all short actions or all long actions?

If there are any exceptions to bolt head swapping I'd love to know before I start tracking down parts for a 7SAUM, 6XC, or maybe a 338 WSM if I'm brave.

I'd like a usable live round extraction port and some kind of repeater, preferably a DBM.

Thanks guys.