If you are using card and felt wadding I may be able to help. These are published loads having been tested through the Birmingham Proof House. I can find a few 2 and 5/8" loads using American powders (most use European powders as I live in England). Parallel tube case (not compression formed) 1 5/8th. ounce lead shot CCI 109 or Win 209 primer, 45 grains of Blue Dot or 33 grains of Herco or 37 grains HS6, 1/8" card wad, 1/2" felt, 1/16" card, shot then roll crimp with a 1/16" top wad. These are suitable for guns nitro proofed for the 1 3/8th. ounce load. I have used these myself along with powders such as Vectan AO, Nobel 62 and Nobel 82. I still have a few boxes of the old Eley-Kynoch 10 bore 2 5/8th. inch cartridges but these are becoming collector's items now. Lagopus.....
