Hi Mike, since I last talked to you I picked up a .450 Nitro Webley 1902 falling block along with a box of nitro Kynoch ammo. The Kynoch .450 Nitro ammo fits perfectly in all 4 rifles. I am thinking there is something wrong with the Hornady dies. I was assuming the chambers were smaller on the three blackpowder double rifle, but it appears they are the same as the Nitro chamber. I would think full length sizing the new Jamison cases in the Hornady dies would enable them to fit in the 1902 Webley. The sized cases stick out about 1/4" from chambering in all three rifles. Thanks a lot for your help.
