I used gun cleaning products for years, then I realised what a waste of money it was. I use GT85 spray down the barrel bores, ONLY if they need it (normally they do not) but I do use a 'clean' cartridge in the first place. I use Lucas red grease on the knuckle or hinge pin, Lucas gun oil for the multi chokes and my old unused engine oil (all synthetic stuff now) for wiping down the outside of the metal. I do not oil inside the bores, ever. My guns are all in gun socks in the cabinet, the S x S' s are stored muzzle down and with snap caps. The remainder are all 'nose to tail' and no snap caps. Every six months or so, I remove the bottom barrel firing pin on the Browning/Miroku guns, clean off the carbon, LIGHTLY oil and refit (dressing the point of the pin, if required). I clean out the action at the same time. I do not apply any oil to the semi auto's actions, other than a tiny amount to the bolt rails. They do not rust, break down or anything else, apart from shoot quite well.