I have been working up a load for my 480 with the 71/2 inch barrel. I have stopped at 18.3 gains of h110 which gives me on average 1077 fps. The case are not sticking and it is manageable to shoot. Has anyone work up a load for the 480 with a 425 grain LFNGC hard cast bullet? Or and I way out in left field with this load?