Yes, but it's insufficient if you need to bury anything in the back yard after the government decides its subjects don't need to own guns.
I heard that after private ownership of guns was effectively banned in Australia, they did have a spike in sales of cosmoline and PVC. Don't know if it's true or not.
I am sure that you are aware of those small ground penetrating radar devices that all of the larger police departments have. You are going to have to dig a very deep hole to put your PVC canister in!
It has been said right here on FreeRepublic that if it is time to bury your guns, then it is time to break them out and start using them. If "the government decides its subjects don't need to own guns", the we should not break the law.
Semper Fi
An Old Man