Pap,
To this day,I believe that all the ammo companies use for their standard 158 gr LRN load is still 3.5 grains of Bullseye.

It is non +P.

And for ther 45acp 185 grain mid range load is 3.5 grains of Bullseye.

A buddy of mine years ago (many) was able to puchase a 15 lb canister of it. I think he is still using it.

Wayne