Beware of some of the newer barrels. I was out scrounging and noticed some of the newer barrels are thin compared to the older ones.

I very much agree!
Used thin rusty barrels What a %^%^ing nitemare!
Never again.
If I had Oxy-Propane, Woulda just brazed it.
Thin Barrels… Unless you a very skilled Welder with access to good equipment don’t even think about it.
Anyone know of a high-temp-paintable sealer?