I guess my specific question is how does it holds up on barrels? Does it show wear after XXXX number of rounds. I shoot all my pistols a lot . I have 3000 + rounds on my new EDC X9. I do clean and lube my guns after every range session.
I have a few clients with barrels coated in DLC (same process) that have 7000-10000 rounds with no noticeable wear. The vickers rating for hardness is very comparable at 1800-2100 With DLC reaching 2300. A TiN coat barrel will last several thousands of rounds. Like mentioned it's thickness is in microns, 1-5, I wouldn't shy away from coating the inside of the barrel if you had the barrel finish reamed first..and possibly throated. However as mentioned if you have an already tight chamber I wouldn't coat the inside. While it probably wouldn't pose a problem not a Chance I would take without verifying that first.
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