I just rescued an old shotgun out of my MIL's basement that was my MIL's grandfathers(parker sxs 12ga). It was rusty and was sitting bore down on the concrete. I oiled it and ran a patch through the barrel and the barrel is shiney. one of the barrels has a ding in it that can be seen on the inside. It isnt indented but you can see where the damage occured. Now this gun will never be used as a primary weapon or never be sold but I would like my kids to shoot a couple doves with this gun when they get old enough just to say the killed something with their gr gr grand fathers shotgun. And maybe they can continue it further.I fired both barrels last dove season just to see if it still worked and both barrels fired. Shoud this gun just be used single shot? I'm just not sure how much this will effect the safety of the gun. The ding about 6 inches from the bore. It has 2 trigers but is not a hammer gun so I dont think that it is real old. what are your thoughts?