If someone wants in ,they're getting in! All we can do is slow them down.I have a cheap safe,loaded with cheap guns, in an obvious place.My best safes,and best guns,are hidden,or rather,clevery disguised.I build around the safe,after I have it in place.It's secured to the a block wall in the back,and to the floor.It can only be accessed thru the front (or top).The door is always the strongest part.Most safe bodies are at best 10 ga ( roughly 1/8").Many are only 12 ga.You can get thru them with a circular saw and a carbide blade.Or a plasma cutter.Or a torch.Or an axe,if you
're detremined,and have room to swing it.Hell,no matter how strong your safe is,they can always put a gun to your head and make YOU open it!Time is the thiefs friend.If you live in the boonies,time is on his side.Make the safe hard to find,and don't give them room to work.My brother made a few safes using sheets of 10 ga.Of course,he was working at a place where he could make the bends.The back,both sides,and a 2" lip on the front were all bent from one piece.He then welded on the top and bottom,and welded 1/4 " angle to the front lip,all around.Then built a door to fit.The locking mechanisms were strong,but coarse.It was a lot of work for what he wound up with.Better to find a commercial model on sale.A gun room or vault may be the ultimate.Poured concrete with hardened rebar,and a vault door ($$$).If you only have a small collection,I'd go with a commercial safe,hidden if possible.I know people who keep their guns in the attic, under the insulation.False wall,etc.Dave