The old old old ACTIVE 20 gauge hulls, the gold hulls or yellow hulls, are terrible hulls for reloading....... In the late 1980s I fooled around reloading some of them with skeet loads and there were all kinds of problems....... Primarily the case mouth would melt and get stuck in the forcing cone..... My advice is to throw those old ACTIVE hulls in the trash...... posted by Jent.