I chronographed a 100gr. volume load of 777 ffg against the same volume of Black Mag'3 pushing 300gr. sabot/bullet. I did get considerably higher velocity out of the Black Mag'3 although I felt the recoil was somewhat softer (heavy but not as sharp as the 777). I was also shooting a stainless Omega. Black Mag'3 seems to work best with heavier bullets and longer barrels which is why the Omega owners seem to love the stuff. I know I am certainly sold so far.