I thought wiping case lube off cases was just part of the game/process.
Now if you want something which IS HARD to get off the cases, try STP.
Over the years, I have formed lots of .308 brass to .243 with the result of a bunch of stove piped necks.
I found that STP, just a bit on the finger of the case handling hand, solved the problem except for the case cleaning.
Then awhile back, I read the tip of using the Imperial Sizing Wax for forming. GOOD TIP!!
No more hard clean up and no stove piped necks.
I have also used the Imperial Sizing Wax for forming 30/30 brass to 25/35, a task for which it worked equally well.
Good product!
Keep em coming!
CDOC
PS, don't forget to turn those necks down on your 308 to 243 conversions, as without it you may make an unusable wall hanger out of your nice and expensive .243!