I was at the range today with my Lil lady and we were testing the first lead loads for her bersa 380. It was the Lee 356-102 sized to 356 and lubed with FWFL. My alloy was 7# coww/4# pure/3oz pewter. The load was 3.6 unique and the velocity was in the neighborhood of 900 fps. It was fairly accurate at 10 yards. After 80 rounds there was a small sliver of lead that could be seen from the muzzle so we changed guns. I got home and disassembled the gun and could see what I would describe as a thin smear the entire length of the barrel. It was gone with 2 pulls of a bore snake. Thoughts? Can I do better?