Hexagonal Boron Nitride

358156 hp

At large, whereabouts unknown.
Since I'm not getting the warm fuzzies over powder coating, I think I'll be trying HBN with an epoxy or polyurethane paint, like we see in the YouTube videos. Has anyone tried this yet? It's supposed to be similar in results to Hi-Tek. I see some of the long range rifle guys use it as both a bore treatment, and tumble their bullets in it in a fashion similar to moly coating

To be fair to PC, I am ordering different powders to try, I think I have a handle on the situation, but I do feel it's much more labor intensive than just zipping a few hundred bullets through my Star sizer.
 
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Brad

Benevolent Overlord and site owner
Staff member
Good question?
My only question is this-do we need the lubricaring qualities of HBN? I don't know?
I think PC has an advantage over Hi-Tek in having a thicker and slightly softer coating. I think that allows it to maintain a seal with the bore when HT can't.

I see you trying this just to know.
 

Ian

Notorious member
It has to do with CORE more than lube. Pete sent me some <5 micron hBN a few years ago and I've dabbled with it here and there for lots of things. Made into a paste with polybutene, aluminum stearate, and polyolester oil it makes a sear grease that has no equal. Mixing it with PC powder and baking it on was an idea I've been kicking around for a while, but so far haven't found the need. I used it to dust some TL bullets one time that had been coated with BLL but it didn't seem to make much difference to my handguns, good or bad (no effect on forcing cone or top-of-land abrasion-related leading). The fact that the stuff is used to impact coat jax rifle bullets mostly removed my fears of embedding tiny diamonds in bullet paint and sending them down my barrels like so many Tubbs bullets.....mostly.

In a conventional lube hBn can be a great equalizer, remember how it fixed my first-shot flyers with TnT in my rifles (the rifle that was the only one apparently to not suffer the brown plague with TnT)? The trick is it has to be on both surfaces (barrel and bullet) so a little seasoning is required. It is NOT like Teflon, it is more like colloidal graphite which is only slippery when moving against itself.
 

358156 hp

At large, whereabouts unknown.
I think its even referred to as "white graphite", as well. Its funny you mentioned adding it to powder coat, I'm toying with that idea as well. The stuff is pretty expensive though, the .5 micron averages around $110.00/lb. It may end up being of marginal use with cast because of the cost. Now, as a bore & bullet treatment for long-range rifles like the stuff Tom plays with (rough crowd), it could be the final difference between winning and losing.
 

Brad

Benevolent Overlord and site owner
Staff member
$110/lb but a pound will coat how many tens of thousands of bullets? Maybe hundreds of thousands?
 

Ian

Notorious member
Pete gave me a small prescription bottle full of it and after using it for all kinds of stuff including lots of bullet lube trials only about a quarter inch is missing. I'll bet the net contents don't make a half-ounce.
 

pokute

Active Member
I use BN mixed with JPW to lube jacketed bullets. Depending on the fit of the bullet and condition of the bore, it either increases or decreases the velocity. But best of all, absolutely no residue in a clean and shiny bore. Great for overdriving things in FA's. A little BN goes a long way. It makes a very good bore treatment for an old pitted bore - Just spackle the bore with the BN in JPW with a mop.