Looking for help on published 1oz bismuth loads. I have cheddite hulls (once-fired Boss shells), and a source for ch209 primers. I can get my hands on longshot or 20/28 powder. Probably others, but I know these are available locally right now. I have a Lyman's 5th edition, but all the bismuth specific loads are for the SP16 wads, which I can't find. The data sheets here appear to be for lead. I haven't loaded bismuth before, but my understanding is that a 1oz lead wad won't hold a 1oz payload of bismuth. Hence why the SP16 is popular. So what wad combo can I use to achieve a 1oz bismuth load at or near 1300fps with cheddite hulls and ch209 primers? I would prefer not to have to use buffers or wraps. I'm not super concerned about powder migration.
