roscoe,
I have not tried this, but after reading some of metford's writings it is on the drawing board.
metford felt that oil was very important, and seemed to deliver it with wads.
these wads were soaked in the oil, and then let sit in a sieve to drain off the excess.
ammo loaded with such wads would probably be needed to be loaded with neck tension so that oil was not squeezed out of the wads when chambering a tight bullet, and to maintain the same cartridge overall length in this circumstance.
an oil with long carbon chains would combine with fouling to make soap, just as fats like tallow do.
maybe 50/50 tallow and oil would be good done this way as well.
the brits shot dirty in long range match rifle comps, and some said that a straight beeswax wad worked, quite the opposite of the above.
they could hold verticle of 36" at 1000 yards shooting dirty.
keep safe,
bruce.

Here’s A.O. Neidner’s recipe for grease wads. 2 oz. Graphite, 4 oz. Beeswax, 4 oz. Japan wax.

40 Rod

some advise NOT to read Matthews books, particularly the one on pping.
generally speaking they contain conflicting info not well thought out, much of which has been proven to be a waste of time.
this can cause a lot of time wasting until you find out.
his pping book mixes up bore and groove diameter stuff as well as smokeless and bpcr with great abandon.
there are far better resources.
keep safe,
bruce.

    Easiest way to make a sheet of wax, whatever formula, is to pour the melted wax onto a pan of warm water and let it harden.  VOILA!, a sheet of wax of uniform thickness.
    An extruder is not hard to make and less messy.  All that said, I have never found much use for wax wads.   Mostly they were used in military applications, where the idea was to KEEP SHOOTING.   For sporting use, you don't have to fire long strings of shots, and for target, you will wipe between shots, anyway.
    The ODG's seemed to use oil-  or grease-soaked felt wads as obturators with PP bullets.

CHRIS
RGChristensen