Originally Posted by RangerEd
I see now! I halfway expected to see a line of aluminum at the apex of the curve where the chamber would meet the aluminum . I guess the aluminum block doesn't touch. Wouldn't just aluminum pillars do just as good?
Good question. I don't really know the answer to that. My hypothesis is that properly done epoxy pillar bedding is just as good. I think the appeal of the aluminum bedding block is that it is supposed to be a production approach to achieving the results of a custom pillar bedding job. It would be great if it worked like that but my experience is that while they are better than unbedded factory pillar jobs, they still need bedding to get a stress free mate between the barreled action and the stock.
I can say that bedding the one in the pictures was really quick and easy compared to bedding a conventional wood stock, adding pillars, hogging it out to make room for the epoxy, etc. I just milled a couple of grooves in the aluminum bedding block to give the epoxy a place to be, prepped the receiver in the usual ways, put release agent where it was needed, dammed the places I didn't want epoxy with plumbers putty, and went for the epoxy. The receiver rocked around in the aluminum block before it was bedded. It doesn't now.
The bad news is the bedding blocks need bedding to eliminate possible bedding issues, the good news is that it's really easy to do it.