Still very initial results, but we have the ballistics gel recipe down perfect. We are using Knox gelatin in a certain ratio but we may explore other mediums at time goes on. A wax slug, save for a little time to make them, is probably one of the cheapest way to shoot solid projectiles from your shotgun. The Hot glue rounds show a lot of promise. They are much harder and show a lot of promise for penetrating deep into stuff. The brad nail rounds are more of a bonus. They sure would put a real hurting on something. For those of you watching in GB, here's a way you can get hard hitting slugs with minimal effort.