I've read: take a ball bearing larger than the primer pocket, and using a metal dowel stuck down the case against the flash hole, give that dowel > brass > bearing a love tap with a hammer to make it nizentite.
Just got mine, and haven't tried em, yet. If more bump is necessary, before touching the die, one could possibly take some material off the top of the shellholder. I've read of others using a shim (e.g. automotive feeler gauge) between case and shellholder (was not related to MA dies...
Thanks! Would be cool if there was something tenon-specific, instead of chamber-specific. Seems like that would be more useful, albeit less profitable. Lots of barrel thread protectors, but nobody has made one with a tube sticking out of it, yet.
I have a short and long Archimedes. I wouldn't trade them for any other action. When my kids are old enough, it will be MY honor to build them rifles based on this action. American Rifle Company is my gold standard. I've not fondled/shot all custom actions, nor dealt with all the...