I've been reloading the short 10 for years. Any 12ga load can be used in the 10 because of the larger chamber, the pressure will be less. Because I shoot the old Damascus SxS's I try and keep pressures under 8000psi, something you won't have to worry about with a new gun. The Darne may kick a bit so I'd try to keep payloads and velocity down. I use either 1 or 1 1/16oz loads around 1150fps for nice low recoil shooting. The fiber wads can be bought from
www.circlefly.com Get the 16ga 1/2" cushion wad to go in the plastic wad. That way you can split it any length you want for proper load height for a good crimp. It goes in the bottom of the plastic wad before the shot. I found the 10ga hulls seem to be a bit thinner than other gauge shells so proper height of the load is important so you don't wrinkle the shell. For a fold crimp, if I remember at least a 1/2" is needed. It seems like too much when you first look at it. There's Precision Reloading, Grafs and Son, BPI, and Gamalial that all carry reloading supplies. I use 18grs of Clay Dot, RD or Promo, 20grs of American Select or GD, or 17grs of 700X for 1oz loads. For 1 1/8oz loads I personally would use 15grs of 700X, 18grs of Promo or RD,or 20grs of Green Dot. All those loads are at or under 8000psi in the 12 so they should be under 7000psi in a 10ga. A roll crimp usually has less pressure but IMHO they're a PITA. I only use them if I'm throwing away the hull, which I don't do with the 10, they cost too much if you have to buy new empties. I've use the above loads in my 1882 Remington, Parker hammer gun, and Lefever 10's. Good luck, hope I didn't ramble on too long. Paul
