I shouldn't say, but better then the five gallon bucket is 12" or larger PVC with the bottom cap glued on and the top cap greased on with vasoline. drill two holes in the top and attach a 4" U bolt with silicone in the holes. This makes lid removal easy. You can make these as long as you like and can store anything. including weapons and ammo. Just use silca moisture absorbing bags in the tube, you can get these out of electronic packing at the stores. Use silicone wraps on the weapons and ammo. this should be buried straight up and hidden so only you can know where it is at.