Let’s eliminate the pistol... Try putting some factory loads thru it... does the problem still exist?... is the feed ramp marred in anyway?... how ever slightly?... get it polished...
clean the chamber thoughly with a brass chamber brush and good solvent (Hoppe’s or Shooter’s Choice)...
make sure you are getting the correct seating dept... If you load 230 gr FMJ, get a factory load that has no problems going into battery consistantly, use that as as guide for seating and crimping. What kind of dies do you have? 3 or 4 die set?
be sure you are consistant with your strokes on the ram... go to a full stop every round...
Some of the rounds that failed to fully feed would not even go tall the way home with a firm heel of the hand smack to the back of the slide. It would be between 1/8 and 1/2 inch back from full battery. Some would seat with a smack and some just had to be cycled out. Next time if I get any like that I will save them and slap the calipers all over them. My Springfield is clean so I will put some through that next time to compare too.
It is a 3 die set, 4 if if you count the power stage. Size, Bell&powder, seat, crimp. Seat height looked pretty good. Bell seemed fine. Could not really tell about crimp.
The dies themselves are Dillons too.
I think my strokes were consistent but the proof is in what kind of performance you get in... What were we talking about again?
The 9s were funny. The powder I had (231) was not listed for 9 in the book so I hit the web... but clearly I did not hit it hard enough because the slide did not move and they sounded about like .22s
Heh, oops :P
I am going to double check the weight of our 9mm projectiles and do some better searching for loads. Also I have two other brands of powder to try now.