You'd be surprised how easy it is to break into a gun cabinet. Whatever it is just make sure to bolt it down, because if they can carry it off, it doesn't matter how secure it is. One motivated person can easily carry off a 300 lb safe.
+1. Most gun "safes" (like you would see at Bass Pro Shops) are not nearly as tough as you would think. There are good ones out there from several companies but they are not cheap. They are also
very heavy.
_________________________
"There is not a man of us who does not at times need a helping hand to be stretched out to him, and then shame upon him who will not stretch out the helping hand to his brother." -Theodore Roosevelt