You can all stand down on this one. I figure since there were NO responses on this (except to my PM to Hoser), you were all out there doing intensive research into this and haven't had a chance to respond. Sorry, what was that you said? You were all out looking for primers? Sigh, you are wasting gas...

BTW, I still have no idea if it's normal to NOT tap that hole in the back if the tube is bought as a stand-alone-part and not a piece of a kit.

What I do now know from my research is the standard screw is a 1/4x28, and the tap and die are not to be found in a regular tap and die kit at Lowes or Home Depot. I did find a speciality store in town called Fastenal that had ONE of these taps. $3. Cheaper than mailing it back for a different one.

Hole is tapped and assembly complete. Now if I only had WSRP's to load with..