My BoB has 10 days supplies & is designed to allow me to cover 1000+ miles in order to get home.
Yes, I will have to scounge for the additional resupply needed along my way.
Resupply will require: food, water, and equipment.
Enroute supply acquisition includes: weapons & ammo.
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QMC, USCG (Ret)
The best luck is what you make yourself!