Prob. not, they both are hard on barrels but for a hunting rig, it should last a lifetime. I pers. would lean toward the 6.5x284. No forming brass,etc and lots of good brass, loading info out there. Prob. more sellable should you decide to sell it some time in the future. For long range, I would look at the 1:8 twist to take full adv. of the 140gr. high bc tips.
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