Same one as cream of wheat. Corn leaves more mess. The recipe depends on the size of the case and toughness to be fire formed though!
On 06 RWS size case moving the shoulder forward .200 ala Gibbs requires either 15 grains of bullseye or 20 grains of Unque, fill the case with cream of wheat, topped with a wad of toilet paper.
Any less powder of those given and the case will NOT form completely. Actually it doesn't form completely until a heavier load with bullet is used.
Neal