Barrel life of KO2M cartridges?

[std7mag]

I was looking at a Noreen ULR in 408 Cheytac recently.
With the 34" barrel in cartridges like 375 and 408 Cheytac, and 50 BMG, i was wondering what barrel life was like?

 

[46and2]

One season for KO2K competitors.
For me, probably 800 rounds max. Babying the barrel.

 

[std7mag]

Which cartridge are you shooting?

 

[Kramerica]

This is outside my area of expertise but I remember Bryan Litz talking about Ko2m cartridges he said 50bmg was not the most efficient. He compared it to a 30-06. I think it was on snipers hide podcast. Might be worth scanning through to see if you can find it.

 

[d430mes]

Check out Brian Winks Safety First Tactical ELR FB page. Brian documents all the ELR data including Ko2M. The 375 and 416 dominate the class. 800 rounds seems to be the norm