ORIGINAL: biggunz.45-70
The powder was ramshot magnum. Have you actually chrono'd that load and if so how long was the barrel? I ask this because most reloading books list not much more than 2700 fps as the max velocity with a 180 gr bullet in a .30-06.
The old '06 can be safely loaded to produce over 2800 FPS with a 180-grain bullet, but I suspect that any load that gives as muchas 2900 FPS, USING ANY OF THE 4350's is a little on the HOT SIDE!!