Barrel Life?

[stokesrj]

I shoot .223 barrels competitively and mine don't last forever, in fact I go though two or three a year. Of course that depends upon your expectations, when I change mine out is when they will no longer hold X ring at 600 yards. These same barrels will usually shoot less than MOA at 100 yards and many people would still be happy with them. I usually sell them to blasters who think they are just fine.
The 6.5 Grendel outlasts the .223 or 5.56 if they are used with hot loads.
Bob