Jim,
Just curious – would the Mossberg Mariner [one variant of which is now sold in the special waterproof canister packaging] [1] make a decent tube that I can bury on land? Thanks, – Redclay
JWR Replies: Yes, they will work for underground caching since the canisters have an o-ring seal. They should seal well, but it is advisable to add another layer of protection. If nothing else, add a couple of layers of trash bags alternating with cardboard boxes then another trash bag. That way when you dig up the canister, it will have a little protection–and advance warning–when you shovel tip is getting close. Also, you will pull out a canister that isn’t slimy with mud from stem to stern. (“Been there, done that.”) If you live in an area that doesn’t have rocky soil, you can use a post hole digger to plant your canisters vertically. This makes them harder to spot with a metal detector. But if you do, dig an oversize hole and surround the wrapped canister with sand to make extraction easier. Parenthetically, make sure that you take GPS [2] coordinates for your caching site, and record measured distances from several large landmarks. Trees can be removed, fence lines moved, and so forth. You do not want to spend a lot of time digging, especially post-TEOTWAWKI [3].
OBTW, I’m not a big fan of pistol grip type shotguns. They are painful to shoot, and not very accurate without a lot of practice. If you desire compactness, I recommend folding stock shotguns, most of which can be fired from the “stock folded” position in an emergency.