Hello to All,
Many Moons ago, it used to be called 'Rocket WD40' - allegedly with reference to the Titan missile.
For those of you that shoot full-bore & black-powder rifles/pistols, WD40 is excellent to spray down the bore just before you leave the range.
It keeps the powder fouling softer and more easily removable, and retards corrosion on the black-powder bores until you can give them a thorough cleaning
Have fun & a good Sunday,
Best regards
Russ