Match the velocity with either of those powders and you will be close. Maybe try a half grain above and below and then adjust seating depth. The 308 is a very forgiving cartridge to load for and good results can be had with a number of different components.
If you have any of your dads loads then pull one and weigh the powder, also shoot some for velocity. If you have powder charge weight and velocity you should be able to narrow down the choices quickly by cross referencing a couple of loading manuals.
I would just load them up to an accurate load and sight in accordingly.
