Build your own black powder cannon?

[Kommander]

If it's that bad, then you're not going to have the resources to make explosives.

Well that or it will be easier to capture/smuggle some then to manufacture some.

[Steamforger]

the Germans experimented with a papermache sabot for black powder guns IIRC just prior to the 1860's.

The Union Army used them heavily. Schenkl

My Grandfather found quite a few of these in Louisiana. Some Confederate examples used wood.

[Netpackrat]

I assumed that making explosive rounds would be for conditions so extreme that the BATF would be the least of worries. Or else one was so far out in the boonies and on such a large piece of land you could set of a .25 Kiloton blast and no one would notice?

If you are using them under those sort of conditions, you will kind of need them to WORK... Which means testing your design ahead of time, and therefore all of the BATFU worries.

[toad]

Let's see I'll need a lot of aspirin for the phenol, off to Sam's, some muriatic acid from pool supply Walmart, a bunch of natural cotton balls, some acetone from the paint section, some alcohol, some glass, plastic, plastic tubing, auto supply, some alcohol, copper sheet, or aluminum, Home Depot across the road, some alcohol, "hick", battery acid, need to reduce it for greater strength, hick, uhm, some extra long cotton shoe laces, Damn do it yourself Nitric is nasty, do a hick, simple open flame check on the Picric acid, check the burn rate on the shoe laces, needs to check that alcohol foist, hick, "FOMP." Oppss, need mordes alcoholy.
Ouchy, now, to make the blasting caps.....unm...problem....need some lumber, build a berm, build the loooong wooden lever with the pivoting wooden tamping arm on it, check the alcohol again, duck behind the berm, look through the peephole and gently lower the tamping rod into the case and onto the Picric........WANG.....Damn apartment management is always bitching about something, "hick."