Just wanted to add a little clarification for John Hancock and Patriot for their above posts. I don't and I hope most of you aren't burying all your weapons. I have caches of weapons and ammo in several different locations. they are not in my front yard but are in areas I can escape to if I am in a defensive posture. I use 12" PVC because I can cut them to length for my rifles, the seal real well and if you put vaseline inside the top cap it removes easy and help waterproof the unglued top. I bury them under and item, rock bush rotten log,6" of dirt. I bury them vertical so I can remove the dirt or other cover and pull off the cap and retrieve my weapon and ammo. ammo is kept in a small box with a cord for pulling it from the bottom of the tube. If you do this once you arrive at your cache it will take you less then 5 minutes to be rearmed and ready.. Hope I answered any question. if not let me know I'll answer them...