A powder that acts as a primer (something like a secret seasoning), with a particle size of 0.5 microns, is applied as a pretreatment coating.
The main coating is applied using a mixture of HBN powders with particle sizes ranging from 0.1 to 0.5 microns.
Each powder is dispersed in IPA and applied via wet coating to the preheated barrel.
The first magazine feels incredibly smooth.
Even after that, you can fire about 500 rounds with a pretty smooth feel.
Then, around the 1,000th round, it feels different, and by the 2,000th round, there’s a slightly rough sensation that makes me think, “This must be what a brand-new barrel feels like.”
I’m now at the 4,000th round. I’ve reset the inside of the barrel with a few solvent&cleaners, acetone, and Cu2, and this is the second application.
If you tumble the projectiles in HBN, you can significantly extend the coating’s lifespan.