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Message: <blockquote data-quote="Rez Exelon" data-source="post: 3599678" data-attributes="member: 5800"><p>Turned out to be super helpful in diagnosing problems from my 300 Blackout brass conversion. Showed that the rounds were all in spec, but maybe juuuuuust on the edge. Couple piece of brass had a slightly oversized rim and got culled, but that wasn't the source of the issue. The upper itself had a real tight chamber that I would up cleaning up real well, and then taking a ton of oil out of the bolt to clean it's stickiness. I didn't want to mess with anything until I checked the loads from all angles shall we say before I did anything else, and it turned out to be money well spent. I reached out to Sheridan Engineering to see if they'd do a discount on a multi pack actually because I could see this being super useful to a few different calibers I make.</p></blockquote><p></p>