If you have a tough feeding , platform ( in my case I’m playing with an AR in 300 Blk ) and you are experimenting with different boolits, col , etc… can the empty case of your dummy round, contribute to what is going on, at nose of boolit, during feeding? If a nose heavy boolit is having an inconsistent feed at the ramps, would adding the ballast , of the equivalent of primer and your intended charge help?
I don’t like the idea of a live primer and powder during blatant feed and cycle, especially while working on a problematic combination. Would a spent primer installed, and maybe the equivalent powder weight in maybe some cured hot glue beads… make any kind of difference?