I carry a barrel in to the area where I like to hunt Caribou. The area is off limits for motorized vehicles during hunting season. I take a 55gal drum and load in a sleeping bag, two cases of MREs, a small tent, sleeping pads, three fresh sets of underwear and socks, raft, air pump, propane stove and bottles, ax, case of water, binoculars, rifle and ammo. I take the rifle a Ruger M-77 and slip it into a vacuum sealer bag. I use the long roll of bagging material that you cut to length. Once I have the rifle inside I vacuum seal it. Then I seal the ammo, and my underwear. You would not believe how small a pair of bulky wool socks, shorts, and a tee shirt will get. Then I seal them inside the drum. In July I take the drum in by ATV and hide it in the area I want to camp in. Some years I take the rifle, ammo, and a case of MREs and a case of water, up on the mountain and hide them way up there. That way we don't have to carry them (heavy items) up the mountain on my back. Then come hunting season we get flown in and dropped off at or near the camp site. Airplanes are exempted and allowed in the Controlled Use Area.
By vacuum sealing the rifle and ammo, I can take them out of the drum and place them in a separate area, and not have to worry about it getting wet or dirty while hidden.
Once we are ready to go out, we stash everything except the gun, ammo, meat, raft, and pump. We air up the raft load the meat and guns and float down the river to the trail outside the Controlled Use Area. There we get picked up by friends and taken to the highway(36 miles). Once snow falls and the restrictions are no longer in place we go in and remove our gear, and the drum, by snowmachine.
Oh yea, one other thing. We are not going unarmed when the rifle is up on the mountain, and we are climbing the mountain. I carry a S&W 460.