Looking at the press, I think Hammerhead nailed it - lack of leverage at the end of the upstroke with the press. I've got a ram-prime that came with my Lee hand-press, might be time to break that out and see if that solves the issue.
That said, I'd hate to give up the (relative) efficiency of the current setup - may have to go for a dedicated hand primer.
While I planned to use the T-7 for accuracy loading and getting into things, its looking more and more like I should have skipped straight to the 650...
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