Ok so I'm getting jamming issues from my Marlin Model 60. It's from 1969. I've completely disassembled the gun and cleaned it. It was nasty. I'm getting better function than before. Yesterday it started jamming constantly. Here are some pictures to show what the bullets that jam look like. It looks like the nose of the bullet is catching something because there is a indentation on every bullet. Half of them bend. I love this gun and want to keep it going. Any thoughts?