I can't find a webpage about this stuff but from what I found out it seems to be good hot stuff that will stomp you.

Made by Dynamit Nobel.

Product Gauge Ounce of Shot Shot Size Muzzle Velocity (FPS)
Rottweil Super Game 12 1-1/4 6 1330
Rottweil Super Game 12 1-1/4 7-1/2 1330
Rottweil Game 12 1 7-1/2 1290
Rottweil Game 12 1 8 1290
Rottweil Game 12 1 9 1290
Rottweil Game 20 7/8 6 1215
Rottweil Game 20 7/8 7-1/2 1215
Rottweil Game 20 7/8 8 1215