I am running low on my 1962 mfg Lake City Match M72, .30-06 GOV'T ammo. Does anyone know the recipe? I have plenty of the 173 grain FMJ/BT bullets and a decent amount of LC Match brass, just need to know the powder type and charge. The box lists the load as being 2640 fps. I am hoping it is a still being made powder like IMR4064 or IMR4895. Thanks!