Thanks for the comments. The bison horn was really thick and had deep ridges inside that had to be removed to get the plug well fitted. Quite time consuming to get the walls consistently thin. The spring on the charger was broken so got to learn how to make a spring. I wanted to use 1095 but couldn't find a small piece so used a piece of 1075 that I had. Worked out nicely and because it flexes over a long and thin (.050") area it should be fine.
The 4 dram setting throws 98 grains of FFg not the 108 that would be expected. The 98, however, gives me excellent accuracy at 50 yards and I expect that to be sufficient for moose and black bear.
I have leather for a bag and will start that soon. TC, Marc and James have given me enough information to get going. I have a commercial belt bag that will be a good model. It design needs to be enlarged a bit to accommodate a knife then will be set for a fall moose hunt. I'm still a bit stumped about an awl. I got a spear point awl but it is really big and I don't quite understand how it is used to get consistently sized holes. I made an awl using a heavy sail needle that is triangular in cross section and that is what I used on the ball bag. It took a lot of force to get it through the two layers of leather which is a scrap of chrome tanned leather that is fairly heavy. The good thing about the awl was that I could do full penetrations and the holes were very consistent in size. The leather I have is 3-4 oz veg tanned and it should be easier to work with. Maybe not.