Molybdenum Disulfide is an extreme high pressure lubricant, above 400000 psi..
Works great on bullets at speed 3000-4000 fps. I have my own moly applicator kit from Lyman.
A valuable lesson I just experienced was don't shoot moly coated bullets and then shoot Barnes TSX solids. It took 4 hours of scrubbing with Barnes CR-10 to get the copper fouling out of the barrel.
If you do use them don’t shoot anything else till you have cleaned your barrel.
Have fun.