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I know the question isn't directed at me but I'd like to chime in.
Accuracy life is dependent upon many variables, not the least of which is each shooter's definition of accuracy.
Barrel material is one variable. I didn't check the barrel material used in each of these barrels, but they're all SS and I'm assuming the same type of SS. Chambered in .223 is a given. Chamber pressure in a particular load is another. Particular bullet used. Rate of fire. Cleaning schedule and type of cleaning products used.
It's almost an impossible question to answer, but the .223 cartridge is generally easy on barrels if reasonable precautions are made to prevent the barrel from reaching extremely high temperatures. I wouldn't subject a high dollar accuracy type barrel to extended bouts of rapid fire combat type shooting; for me, those sessions are reserved for barrels in the more expendable equipment price range. I also don't use bi-metal jacketed bullets.
That's me, but I too would really like to hear from Tony.
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Thanks for the info.
I'm just looking for a ballpark, even with a Standard Deviation of 2-3k rounds.
It would be great if Tony from BA would come back and chime in.
Spoke with Rainier Arms.
Not a hard tested number, but they suggested that one could expect the Match to at least get around 10k of normal use with quality ammo.
Their CHF barrels, like DD, FN, etc. ~20k.
I don't rape my guns (ARs), with pointless (but fun) mag dumps into the dirt. And, like yourself, I don't buy crap ammo.