The RST hull is a straight walled hull, same as a Federal hull. All the import hulls are straight walled. Use the same data as for a Federal 2 3/4. You'll have trouble loading 2 1/2 hulls with a fold crimp - a short wad is needed. With a 12ga, I use a wad made for 1 1/8 but only use 3/4 or 7/8 oz of shot. The wads made for more shot have a higher cushion. With BPI, their TC20 wad seems to have the shortest height. Maybe call them [888-273-5623] and say what you're trying to do. You'll also need a 1/4" spacer under the crimp and drop stations [ or Mec short kit ]. Claybuster wads are about 1/2 the price of other wads - phone is 800-922-6287
__________________
Paul Harm
|