Doc, this is the older action with the flat stepped rear on the action. I like the idea of switching from bolts to studs, if I am not able to drill/tap to 5/16 I may do that.

Rob, this rifle sees kind of hard use, that may be getting harder. I don't want to introduce anything that could be a weakness, or in any way leave questions in my mind. Good shooting is a mental game after all.

Thanks again everybody.