6 OZ Cannon Powder pushed this 3# "wheel weight" ball into a rock cliff some 350yds down range. There was a 6' trough [cuz we aimed a bit low] prior to slamming into the rock cliff. Soon this specimen will join a couple of pounds to be shot once more! Best as any of us could tell we were shooting flat in this configuration. The missing part of this ball could be heard, for what seemed like 10 seconds, spinning off into the distance with an unholy deep "wering" sound. If you don't have a cannon you should probably go and get one!