12 gauge with pistol inserts?
For bug out.
Stay with most common rounds
.22, 9mm, 308/762, 12 gauge, 223/556
throw in the pistol inserts for the 12 like .38, .45 colt and acp and .410, 20 gauge insert
If/when bug out becomes a thing you could saw the 12 down to 18 to keep it legal (or if no law at that point whatever length you want).
these won’t be competition accurate but will function in a pinch.
that is where I would be.
For bug out.
Stay with most common rounds
.22, 9mm, 308/762, 12 gauge, 223/556
throw in the pistol inserts for the 12 like .38, .45 colt and acp and .410, 20 gauge insert
If/when bug out becomes a thing you could saw the 12 down to 18 to keep it legal (or if no law at that point whatever length you want).
these won’t be competition accurate but will function in a pinch.
that is where I would be.