gwpercle- I appreciate your theory. However, the line in the case is from the Lee Chamfer Tool I used. Perhaps I'm using it wrong when I deburr the trimmed end.
Ifishsum- Good information. I'm using the Hornady .312" SP 150gr. I have a dozen bullets left that I loaded .125" into the case leaving another .125" to the cannelure. How much further should I seat it, if at all? The average length is 3.030".
I'm pretty sure now that my problem occurs when there is a foreign object in the breach causing the bullet to be pinned into the chamber. This FO stayed in the chamber for about 30 rounds causing "lube like" dents, then finally worked its way out. My guess is that if I do seat the bullet the full .250 to the cannelure, then this will lessen the likelihood of a FO pinning the bullet in the chamber. Of course, I'm open to any other theories.
Ifishsum- Good information. I'm using the Hornady .312" SP 150gr. I have a dozen bullets left that I loaded .125" into the case leaving another .125" to the cannelure. How much further should I seat it, if at all? The average length is 3.030".
I'm pretty sure now that my problem occurs when there is a foreign object in the breach causing the bullet to be pinned into the chamber. This FO stayed in the chamber for about 30 rounds causing "lube like" dents, then finally worked its way out. My guess is that if I do seat the bullet the full .250 to the cannelure, then this will lessen the likelihood of a FO pinning the bullet in the chamber. Of course, I'm open to any other theories.