I was using blue dot powder and the lyman 525 lead slugs and old Winchester shells with claybuster shotshell wads. Had a slug get stuck like a squib load mid way through the barrel. Figured maybe the load-all didn't dispense a full load, but now it has happened a second time, and when removing the slug I noticed that it appeared that the wad got caught and the outside of the shells were showing signs of burning. Any idea what this could be beyond lack of powder? I'm playing detective because I know I was very mindful to check each shell for powder before putting in the wads so I'm skeptical especially with the signs of burning on the shell that the stuck slug in barrel was caused by a squib load.


















































