I have shot about 2500 rds of 150gr Hornady FMJBT's using 46 grains of H4895. This is an accurate and reliable load for my M1. It is probably a little lighter than standard M2 ball (the M1's issue ammo) but I have had good results with that combo and have rung steel out to 1000 with it.
Interested in Appleseed? PM me for info