Ok, a good while back I picked up a bag of primed 20 gauge Cheddite paper hulls from BP.Wanted to try some blackpowder loads with them.No matter what amount of powder or shot I used the hulls would split the hole length of the hull.So I cut a piece of heavy paper that wrapped around the hull without over lapping at the seam just a little glue stick to hold it on.And now when I shoot them no splitting at all. Just something I had to try to keep busy.If the hulls were like Federal paper ones I wouldn't have to do.Forgot to add that I did try the Cheddite hulls in 2 different single barrel guns and the hulls split in both of them.