Time for AU and AG

[TOF]

Couple of things spring to mind.
1) You'd have to be pretty well tooled up to get anywhere near a Chemists. Don't for one minute think you're going to beat the local addicts to it, also Chemists, like Vet surgeries tend to be very well fortified and no way would the Pharmacist just let you walk in.
2) Do you really want to barter ammunition? Think about it, those who want it, probably don't have any. Once you do your deal, well then you have armed them and they will most likely use it to have a go at your stores as you have just demonstrated you have some! Nope, I won't be bartering anything explosive, pointy or otherwise able to harm or threaten me and mine. Just my few P's worth.