The lubricant keeps the fouling soft so the wad under the ball creates a mist of lubricant that softens the fouling.
Lube on top of the ball, no so much.
Or, and I hate to say this being a dyed in the wool Gunpowder shooter, if you use American Pioneer Powder
in any of the different labels American Pioneer Powder, Jim Shockey's Gold, or Alliant Black MZ the fouling acts as a lubricant with out the corrosive effects of perchlorate bearing powders. And to top it off costs a lot less and is easier to clean since the gun is only "one shot dirty". I use it from time to time because it is so easy and fast to clean.
Respectfully Submitted
Bunk
Lube on top of the ball, no so much.
Or, and I hate to say this being a dyed in the wool Gunpowder shooter, if you use American Pioneer Powder
in any of the different labels American Pioneer Powder, Jim Shockey's Gold, or Alliant Black MZ the fouling acts as a lubricant with out the corrosive effects of perchlorate bearing powders. And to top it off costs a lot less and is easier to clean since the gun is only "one shot dirty". I use it from time to time because it is so easy and fast to clean.
Respectfully Submitted
Bunk