Here is the question: how does your ML work?
Powder charge and then a bore fitting jacket with a bullet in it. The plastic jacket expands from the pressure into the rifling and out it goes. Right behind a hot gas and powder residue cloud.
The powder residue now is all over the barrel. The most residue is right around where the bottom of your jacket was. Now, you load again and you shove the residue down with your jacket.
Now you fire and the combustion heat will bake on the residue(fouling) onto the barrel.
The baked on residue is very hard and your next shot becomes very diffucult to load.
In order to have a consistant barrel, you need to wipe between shots with a damp patch. The patch is not supposed to fit tight, otherwise you shove the stuff down the barrel on top of your ignition channel. Instead, the patch needs to go down easy because it removes the fouling on the way out. I recommend a little nozzle bottle with moose milk, put a cross on the patch, rub in and wipe.
