December 4, 1997

From the Benchrest List:

Molybdenum disulfide's claim to fame as a lubricant is that it works under HIGH pressure where most other
lubricants would break down (and, yes, it does have a low coefficient of friction, too).  0.3 micron diameter particle
moly (I believe, one of the highest grades of moly) has a working pressure of 500,000+ PSI at -100 to +1000
degerees F.  (Data from Parsec's specifications for the moly that they use in their moly containing products.)  I would imagine that the pressure between the bullet and rifling JUST as they meet, as engraving starts, is pretty darn high.

J. N.

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