Hello All: Not sure if this should be here or at casting for shotguns. I own a Rossi 20ga. 3" fixed choke modified smooth bore. This shotgun has a hammer with a transfer safety plus a toggle safety on the side. This, with the low price of just over $100 makes this a good choice for a 60 caliber musket in my thoughts. I've purchased a 209 primer adapter to convert the single shot gun to a muzzle loader from Short Lane. I'd like to shoot a .600 round ball and on occasion some buck shot with black powder. My concern is with the fixed modified choke, what would be a good choice for wadding? I could just load shotshells but I don't see this as an advantage using black powder as it isn't a weak action gun. I have on hand some 20ga. muzzle loading fiber wads that are lubed but I'm not sure they could be tamped in enough to provide a seal after passing through the modified choke. I've seen a video of a survival sort where sheeps wool was used for wadding. Do any of you have thoughts on a better material for wadding in this application? Thanks Gp