Re: Barrel life, 6-284 vs. 6.5-06 AI
If it's a hunting rifle, if you can hit on a good load quickly, it doesn't really matter.
If you can picture yourself shooting at a range alot, accepting only best accuracy, then stay away from both. Neither has good barrel life in that sense. I would predict 1300 for the 6.5-06, and 900 for a 6-284.
But then if you keep looking, I'm sure you'll come across somebody with thousands of rounds from either one. What you have there is people who's expectations in accuracy are met, and apparently will be forever. Even though peak performance for that barrel has long passed. Many keep shooting 'good enough'.
Let's face it, 1/2moa is good enough to compete anywhere but point blank and rimfire BR. That is, if your a good enough shooter, or things are going your way. If a rifle starts out capable of 1/4moa, and leaves that soon to settle around 1/2moa. The competitive 1/2moa shooter is still setting pretty good, and likely will be for quite awhile until the barrel gets so bad that he concedes burn out. Or.. things aren't going his way now, and like a desperate golfer, he'll get him another putter to get back on track. Ask him about his barrel life, who knows the answer you'll get.