I was over at the local gun show today and got a small score of 75 .58 caliber 530 grain minnie balls for only four dollars. Don't know what mold they came out of but they look like a good tight fit in my Navy Arms Buffalo Hunter in .58 caliber. Just about the only muzzle loader supplies that I saw at the show. Don't know when I can get to the range so they are going on the shelf in the reloading room with the rest of the round tu its.