I had a go at lining two holsters, using chamois (shammy) leather and 3M 77 adhesive spray. I thought it would be easier than Barge to start with. Maybe Barge next time . . .
(I've lined holsters before but not with this fine lining.)
I tacked the lining to a board, sprayed the lining and the leather, and put them together. It went fairly easily.