hBN with Cutting Edge bullets?

[Stretch_TX]

Has anyone used hBN coating on solid copper bullets (cutting edge)?

I've used hBN on jacketed bullets, but I'm wondering if there are any issues with solid copper projectiles..
Thanks!

 

[Bravo 4]

I had no issues.

 

[Calvin45]

Has anyone used hBN coating on solid copper bullets (cutting edge)?

I've used hBN on jacketed bullets, but I'm wondering if there are any issues with solid copper projectiles..
Thanks!

I use it on Barnes tac tx 120 grain in 300 win mag at 4060 fps. Don't think that velocity without pressure spiking would be possible without it.

 

[Calvin45]

But I also don't know if it's be as beneficial on cutting edge or hammer because if I'm not mistaken those don't have much bearing surface to begin with. But I assure you it certainly won't hurt anything.