Also the hotter the load, the type of powder used (heat generation), how quickly firing (heat generation, bombing up real real bad) will all accelerate the barrel's demise.
If you recheck your seating depth from time to time you can also get a feel for throat advancement per rounds fired. And when doing that seating depth check if the projectile feels "notchy" as you push it into the throat what your are feeling is bad fire cracking. Better to load a 7mm SAUM to maybe the high end of a 284W performance and barrel life and brass life will be extended.
Otherwise if just having acquired the rifle if possible get access to a borescope to examine the lead and degree of fire cracking/erosion.
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