Sorry for the minor thread necromancy...
But this thread motivated me to get more organized, and clean up my piles of "gun stuff" and get all the rifle/carbine and Saiga 12 magazines that don't fit easily into the safe into something more secure, seeing as in the current market they're potentially irreplaceable as the guns themselves.
Found the old Stack-On upper pistol cabinet I've had for about 20 years now. It's been gathering dust since before my last move in 2000. I'd lost the key for the lower rifle cabinet in a prior move, and on a range day with friends I'd just pried my way in with my biggest Craftsman screwdriver and a ball-peen hammer. Once that was trashed, the smaller top-cabinet just went into the "too useless to use, to nice to throw away" pile.
Lag bolted into the studs sitting on top of the main safe, it's kind of hard to access sandwiched in there, denying leverage a bit, and provides a bit less access to the safe itself holding it down from the top. (as if the anchor wedges aren't enough) I wish I could have tucked it all the way into the corner, denying even more leverage to an attack, but the studs don't line up that way.
Now if I only had something for the ammo. I've thought about running a long chain through all my ammo cans, but that would be more of a PITA for me than a burglar.