Note that this is just BP green mix with the addition of dextrin. It is slower burning than Degn #1. Add additional 5% steel or titanium filings for gold sparks. Comp is dampened with 5% water and rammed damp. Case specified as 3/4 in. ID, 1-1/8 in. OD and 7-1/2 in. long with 3/16 in. dia. holes.