Here is a picture of a loaded 454 casull round and next to it a 400 grain bullet. one of the fellows on the board "saz" asked to see a pic and some data. The oal is 1.753, for a full "knock down" load is 20.5 grains of lil gun. It chronos 1875 fps out of my Puma 92 with a 20" barrel. It works out to a little over 3000 foot pounds, so it makes it a "baby 45-70". The recoil energy is about twice of what a 30-06 would give. With a 6 pound gun you will know it went off. I'll give a run down for you all in a couple of months on how it does on South Missouri feral hogs.