Having some trouble with keyholing all of a sudden and am wondering: is it possible that the cartridge is swaging the base enough to destabilize my cast and swaged boolit?
38 special full wadcutter - either dewc cast or full swaged 'trash can' with a target nose - seated a hair above the case
minimal crimp (nothing really)
3.5gr bullseye or 3.2 gr WST
freedom arms 97 and 83
BHN 8
powder coated
sized to 0.358
trying to just shoot paper and these are going haywire at 40'
i load on a dillon sdb and I know the powder funnel doesn't get more than half the distance inside the case- looking for alternatives to the standard dillon funnel
things I've noticed- I can hear the rounds that will keyhole when i shoot them - sound different somehow. I have checked and checked the amount of powder thrown and it is always spot on but.. I haven't measured each and every cartridge yet- will do that next.
i cast some new DEWC this morning BHN 11-12
when these are loaded I can see where the bullet lands in the case (as opposed to the softer lead) so that prompted this line of question.
did not see much barrel leading when i looked the other day (but there was some)
before this started i was using both cast and swaged with no keyholing
but this started with a new batch or both cast and swaged that I made earlier this month.
so.. all thoughts and critiques are welcome.Thank you in advance