Anybody know what type powder Federal uses in the 308 Winchester 168 gr. Gold Medal Match shells? It measures out to 43.4 grains. It is extruded powder. The grains are cut very short and are .030" diameter. They are dark black and shiny. It doesn't match any powder that I have on hand. I'm trying to duplicate the load. This ammo shoots very well in my Rem. 700 Tactical. Any info would be appreciated.