It rained Thursday so I was messing around in the shop. I was checking my supplies and equipment for Elk season, and when loading speed loaders, I found this. I fired my rifle twice within a couple of minutes last season, and the only thing that could have melted this is a hot barrel. I have never noticed the barrel getting hot or I would have noticed it when reloading, particularly if I was at the range. It's a mystery to me.