The 2 7/8 inch Super-Ten shell didn't come out until well after Hunter Arms Co./L.C. Smith quit making 10-gauge guns. At the time they were making 10-gauge guns the heaviest loads offered by our North American ammunition companies were 4 1/4 drams of bulk smokeless powder or 34 grains of dense smokeless powder such as Infallible or Ballistite pushing 1 1/4 ounce of shot out of a 2 7/8 inch paper case.