Just a quick perusal of the Modern Muzzloading forum shows a thread on the subject.

This one here:
https://www.modernmuzzleloader.com/threads/muzzleloading-shotgun.6547/

The wads referred to in the thread:
https://www.ballisticproducts.com/28-gauge-wads/products/91/

If your ML is .56, it seems a 28 gauge (.550) wad would be appropriate. I can't image why the wad would melt using with BP of it doesn't over smokeless.

Anyways, good luck. It looks like a worthy project. Maybe you can successfuly work up a good TSS load for your ML.

Last edited by 10Glocks; 12/07/22.
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