CavVet, thanks for the website, I just listed 7 guns that were stolen from my house in 1994. I carry a list with all the information in my wallet and always have my eyes open. Who knows maybe one day...
I did not have any problem with my insurance company on the accessories. They paid for slings, detachable magagines, including the ammo that was in the magazine, scopes, rings and bases, lens caps and soft cases. Two of the shotguns stolen from my house were my fathers and his homeowners covered them.
Also in a similar case I collect signed and numbered art work and have them on a separate rider on my homeowners policy. I was told that the art work itself would be covered under the rider, but the frame would fall under my general homeowners policy.