I will say it, b/c it needs to be said.......RCR needs to decide who they are for... law abiding citizens i.e. CHP holders or the liberal left nut jobs. This common reply of "our insurance company says we cannot allow it" is bull wad. Prove it. Scan the part of your policy for this forum, or provide a posted copy at your next show. The legal carrying of a concealed handgun doesn't seem to be a problem with the Fremont G.S. sponsors. It doesn't seem to be a problem with the Tulsa G.S. sponsors i.e. Wannemacher(sp?), the largest in the nation. It doesn't seem to be a problem for the Fort Worth or Dallas Gun shows. Seeing the pattern. I bet these groups would be happy to provide you with a CHP holder friendly liability insurer.
If the rest of the buildings at Lancaster Event Center are NOT posted by the owner (and yes, I verified it walking around, and verified previously by FarmerRick), then shame on RCR for their action.