So while we are at it. Lets store are Sub-c's in bullet case's.
For years they have been blowing them up.
Lipo comes along and Bam.! Its an issue.
You can never be to safe with either. Put your lipos in a bomb proof case and wrap your sub-c's in a rag.
I never stored mine any where but in a plastic case. Same exact one as my Sub-c's.
When the manufacturers make a steel one I would guess every one will have one.
I gotta admit a green ammo box with a cool lipo sticker would be cool. It could say open with caution contents may be under pressure.
I wont argue the safty either way till the sub-cs are in bomb proof case. I would hate to get shot by one.
I would recommend a vent hole in those ammo boxes.