Wouldn't do you any good to know what powder they use as you can't buy it anyway. Ammo makers do not use cannister powders like we do. They might actually be using the same or basically same powder but it is sold in non cannister lots and no real attempt is made to keep it uniform lot to lot. The ammo makers have the equipment to test it and determine how much to use to develop the ballistics they are looking for and then they use that until that lot is gone and then do it over again for the next lot.
In my testing of the Federal ammo line in my R700 LSS Mtn. Rifle in .30-06 I found it to be some of the most accurate stuff available. The test results are on my Product Test Page.
GB
