I was shooting my 8mm Mauser yesterday using PC'ed boolits. Some of the loads were pretty hot and I was using 4895 powder. Now for the curious part. I got some leading....but not in the barrel! The barrel was clean for its entire length. The leading was on the outside on the barrel crown! There was a star of lead that flaked off using my fingernail. I've never seen that before. The boolit was a 150 gr. spire point plain base in front a max of 35 gr. of powder and it provided a healthy recoil. Anyone else ever see this?