I’ve been chasing this problem for a while and finally figured out the bushing is slightly above flush. This is intermittently causing the cartridge rim of the round cycling up to snag enough to offer more resistance. The resistance can be felt through the hammer in SA or the trigger in DA.
The reason it’s intermittent is that the recoil sets the cartridge back a smidge and if I don’t lower the barrel, it doesn’t reseat the smidge.
Now the question. Is it just a matter of reseating with a long brass rod through the barrel? Also, is there a more insidious cause for this to have happened?
Thank You for your feedback.
Bevan