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Its not as slippery for want of a better word. I dont lose much at all as I use less powder to get the same speeds as moly.

Yup, HBN. Moly rooted a couple black barrels I had. As Tussock pointed out, mix it with moisture and you get a corrosion factory. They both still shot but looked like an umpa lumpa mine site.

HBN...

I do the same. But can get thru 150-200 before cleaning and its a light run with a brush and a patch or 2 and back into it.
The joys of coating your projectiles with slippery stuff.


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A fouled barrel to me is one that has had a series of rounds thru it prior to shooting cold or hot.
A cold barrel can be fouled or clean.
Generally you will get a velocity increase after your first...