Cheers Longshot
Interesting, not sure if it could be related but I had a plastic tub of damp rid fall to the bottom of the safe a few years ago, cracked the tub and spilled the trapped liquid causing the safe to rust in places. It was about the same time I first noticed the guns picking it up but put it down to being in the garage, since moved into the house.
Thanks to all for your advice, apologies for the double post🙄
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