Breechplug
I have been told not to use petroleum based oils in the barrels of ML's, am I misinformed
It is widely believed that you should not use oil in the bore of a ML IF you are shooting real black powder... mixing an oil with real BP residue makes a black sticky tar substance...
If you treat your bore with an oil and you are going to shoot real BP - then prior to shooting clean the barrel out with 91% alcohol - that will remeove the majority of the oil in the bore.
MX is a petroleum product so it might foul your bore if you are shooting real BP. Actually I would kinda like to know if it does. There is a lot of Glycol Ether in MX so it evaporates rapidly - I do not know if it would mix with shooting real BP or not.
but do you swab the bore dry befor reloading? It has never interfeared with your powder?
With the MX and with the other product I used Slip 2000 (a synthetic oil) I would run a dry patch before shooting (both sides) Shoot a couple of caps or primers - then patch with a windex patch and start shooting. With MX I am just running the dry patch shooting the caps/primers - run the dry patch again and start shooting. Then I continue to use that same dry, but dirty, patch the rest of the shoot or as long as it lasts before tearing and/or wearing out. With MX you really do not need a damp patch - just a hint of moisture will work very well.
It has never interfeared with your powder?
Not sure if you mean because of oil or because of moisture... I think I may have answered the oil question above and as far as moist patch - with MX moist is more wet than needed.
Again I am shooting and experimenting with T7 powder