Ackley published one load for 100 gr. bullet of 50gr./ 4350 for 3,257/fs. I've had varied experience using his published maximum loads.
ETA: rug/Jim Vol. 1, page 336/337 of P. O. Ackley's HANDBOOK FOR SHOOTERS & RELOADERS , apologies for not knowing which edition.
Last edited by RichardAustin; 10/30/14.