Hi guys just after some help for those with a bit more knowledge than me I have just purchased a davies, w. j. damscus hammer gun 12g Im told its a live pigeon gun but have no idea what that means. there is some pitting in the barrels but not what I would call a lot but im no expert its very tight when its closed up and the bloke I bought it of said it was sold to him as safe to shoot what I would like to know is what I should be careful of and do I need to use a special cartridge to keep it safe also any other info people might have on the make and possible age and value of the gun. I know its a lot to ask but any info would be gratefully received Thanks Tim