Federal law prohibits storing anything over 50 lbs.. JMO but if anyone ventures into this, SAFETY is most important, paying attention to detail, PATIENCE and PERSERVENCE. Since I started making it, I've had really good results both in BP rifles and centerfire. I still haven't got to the "pucks" yet, but I screen wet BP and let it dry and it does fine. Line 'em up, knock 'em back then fill 'em up again!