Frank, I disagree with the premise that beeswax is somehow bad in a gun barrel, but you must do what you feel best for you and your shooting.
For those shooting Minnie or flat base bullets in competition or for hunting like in and muzzle loading rifles, but more often in .58 rifles or the Parker Hale Whitworth and Volunteer .451 rifles, beeswax is virtually in all bullet lubes used with black powder -(& modern smokeless rifles shooting cast bullets as well) - whether it's Lyman's Black Powder Gold, SPG, or a mix like the old Sharps lube of Beeswax/Tallow around 60:40, beeswax is used in the concoction for black powder bullets.
That some people put it in their patch lube for patched round balls due to specific reasons such as high temp integrity, more power to them.
I have used the Sharp's mix as well as SPG and Black Powder Gold on bullets in muzzleloaders & had absolutely no problems switching back to patched balls or back to slugs during the shooting sessions - no wiping needed before switching, either direction.