GreyD
32 Cal
Hmmm
Just thinking here not arguing one way or other.
Powder burns at a pretty high temp. As I recall about 1700 degrees. You grease your patch and have a ball that works as a great heat sink above it. Still it toast to a dark brown. And if your patch is a bit loose you can get blow by and burn up you patch.
Now when I season cast iron I only get it to hot enough to fry in. Not so hot that my grease would smoke.
And the grease isn’t exposed to direct flame.
Wouldn’t hot flame pretty much burn out any oil in you barrel.
I clean a new barrel but it takes about ten-twenty shots before it really starts to shoot well. I always blamed it on left over oil in the barrel.
When done I clean with water, some times some mild soap. Then after drying I gease. Before I shoot I wipe out the barrel. I don’t think much in the way of oil/ grease/ moose milk in a microscopic film on the inside would stand up to the blowtourch inside the barrel.... just guessing here as I said not arguing just thinking.
I'm thinking too. You make a point here. You are right that there is probably some combustion of the oil and fats at that high a temperature. But a combustion reaction is a complex thing and temperature profiles are going to vary within the barrel. It would be interesting to model. The inside of the barrel is going to be cooler and act as a heat sink so maybe some of the oil/fat on the surface doesn't get combusted and does polymerize. The rest may be combusted. In fact, it probably does. I don't know what the ignition temp of various oils/fats are (need to check) but probably below 2800 F.