Look around and find a can of PB. I know it is not made anymore but there is some still out there. I Just bought 32 pounds, four eight pound kegs, to keep me loading for life low pressure one ounce loads.
If you adjust the shell length slightly you can load 2 3/4" loads in to a 2 5/8" to 2 1/2" empty. Find a low pressure load and try it in a hull. I have had several which fit fairly nicely. When in doubt load up six to have them pressure tested. Several places do this for a reasonable fee. Then you have complete peace of mind that your loads are safe.
