Steve, maybe you can answers question about the rules of the shoot. I sent the question to the course but no reply. I see that chamber reducers are not allowed in the sub gage events. But my question is what about the 10 gauge event? I have an old Baker with twist barrels that is beautiful and fun to shoot. However I do not put 10 gauge loads in her but rather 7/8 low pressure 12's with a gauge mate. Seems that there would be no advantage competing with the 10 gauge shooters. It just takes it easy on an old gun.