The easiest way to tell if primer is seated "below" flush is simply use a straight edge (like your caliper) and rest it on the case head. There should be clearance.
I also think the crimps have not been removed fully. I ream them out, gave up on swagging,
You don't need #41 primers, how many millions of rounds have been loaded with regular SRP primers before marketing introduced #41 primers??. What do the reloading manuals use?? Yes, SRP
I also think the crimps have not been removed fully. I ream them out, gave up on swagging,
You don't need #41 primers, how many millions of rounds have been loaded with regular SRP primers before marketing introduced #41 primers??. What do the reloading manuals use?? Yes, SRP