Lubing a .72 slug just enough for airgun use?

[17nut]

How do i apply a suficient amount of lube to a Foster slug?
It will be used in an airgun and requires some lube for pure metal to metal contact in the 32" barrel.


https://i.imgur.com/5LM37BI.jpg

[stubshaft]

Roll the slugs along a file to slightly knurl the edges then roll them in LLA.

[NSB]

Lots of guys used the file trick when shooting Savage ML2 muzzle loaders without sabots. There were cases of file points coming off and gouging the barrels. You’re taking a chance

[lar45]

I might be tempted to try 45-45-10.
It goes on relatively thin and dries hard.

[megasupermagnum]

Two thin coats of alox tumble lube is plenty for a shotgun, I'm sure it will work in an airgun too.

[beagle]

I lube .358 round balls for .38 loads by dipping in Lee Alox lube diluted with lighter fluid and letting dry on a sheet of harware cloth. Dries hard and should work./beagle

[Brassmonkey]

Lots of guys used the file trick when shooting Savage ML2 muzzle loaders without sabots. There were cases of file points coming off and gouging the barrels. You’re taking a chance

Was it really file points or a dirty file?

[GhostHawk]

IMO either Liquid lube or 45/45/10 should work well.

Does not take much, just enough to start seeing a brassy color change. Set on paper in front of a fan to dry and you can cast, lube and load within an hour or 2.

You could try dipping heads and the bottom of the skirt or tumble lube.