hi all, this is my formula for the lyman 525 slug plus a mod to the slug for the next trip to the range
fiocci 3" hull,sand paper inside the wad is made from stick back sand paper folded over then punched out with a 1/2 inch pipe sb12 replacement wad ,slug edges rolled on a file and bottom filled with hot glue as i read here in the forums. The sand paper grips the bottom of the slug and the wad giving the slug a correct spin. A 3" shell is used to allow the slug to come 1/4" closer to the end of the chamber as it begins its travel. I use 44 grains blue dot. That is a 2 3/4 load. More than that is nuts because my gun is a nef hunter light. Only 5.5 lb. The blast will scare the deer to death next post see a "new 525 lyman slug"