[Kartographer]

As I remember no the .22 did not penetrate the cargo container.

I also found this from FR:

ISO containers are constructed of thin Corten type steel with corrugations to give strength. Typical container walls will stop a .22 Long Rifle, and perhaps weaker pistol bullets. Most rifle bullets will easily penetrate the sheet metal of a container. Even the corner posts are just 1/4 inch thick square or rectangular steel tubing, which a decent rifle will penetrate.

While I agree the walls aren't bullet proof you have to agree that they would beat the hell out of a sheet of dry wall! ;-)

[ProfoundMan]

While I agree the walls aren't bullet proof you have to agree that they would beat the hell out of a sheet of dry wall! ;-)

Perhaps, but they are hardly the "fortresses" I was responding to.

Thanks for all your prepper posts. They are always informative and thought-provoking for those of us who prefer not to just take what comes.