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Message: <blockquote data-quote="Rez Exelon" data-source="post: 3596126" data-attributes="member: 5800">Sage advise as always and probably a good blueprint for the next round of testing. I did decide to chuck some more money at hte project (sigh...cutting into my savings of doing it this way LOL) and get one of the Sheridan gauges. Really cool setup being that you check and see everything at once. [ATTACH=full]210504[/ATTACH]So that'll probably take a few days to get here but give me proof positive if I'm screwing something up, or if I need to send it back. The bad thing is that after discovering this today, that might very well cost me a good chunk more money because I can see (pending testing) how it could be really useful in many other situations as well. The 22-250 shoulder bump issue from a few months back being a prime example. In this case, if the problem was the shoulder, then I can use my other shellholder, test and check headspace, and then repeat with this one to see the difference. It should also allow me to see if the brass is too thick. One possibility for the clearance issues, being that this is cutdown brass, is that the case walls are thicker than they should be. IIRC I saw some posts that indicated neck thickness should be .011-.013 and that some brass would wind up being .013+ and cause issues. I checked the necks at (mostly) .012 so I don't think that'd apply here, but this would be a great way to verify.</blockquote>