I bought most of my reloading equipment used many years ago. There was a very old book that came with it. In this book, the author talked about seating a heavy hunting bullet backwards over a charge of SR4759 or 4198 for a 2000 fps turkey bullet that would not expand. Anybody ever tried this? I no longer have the book and don't feel comfortable trying it on memory alone. Does anybody have an IMR 4198 load for the .270 winchester? Speer manual shows IMR SR4798 for .270 and IMR 4198 for the .243. I already have a pound of 4198. Will it work in the .270?