Let's get this thread back on track to the OP's question.
If those are the only bullets you are considering, I would go with the 143 ELD-X. It has been very consistent for me out of both the 6.5 Creedmoor and the 6.5 PRC and you can find it in factory ammo. It will wreck some meat at shots under 300 yards but I've never lost a deer with them. I used the Hornady Precision Ammo last year with my CM and dropped an 8 point in his tracks at 260 yards.
I currently shoot the 156 EOLs out of my PRC but I also have a 1:7.5tw barrel. I was not able to get acceptable performance out of a 1:8tw in my PRC and you will get less velocity out of a CM which will exacerbate the stability issue. It might work with your barrel and altitude but it did not for me.
Personally I think the Accubond is not needed for medium sized game and I've had issues tuning them in my rifles.
If you are open to other bullets, the sky's the limit. Bergers are my favorite brand due to their accuracy and lethality. I accept that there will be meat damage but I've never had to track any animal further than 40 yards. I'll trade less meat for not finding an animal any day. Out of the CM I would try the 130 OTM, 135 Classic Hunter, 140 VLD, 140 Elite Hunter and the 144 Hybrid. I've had good success with them all. I think the 130 OTM and 135 Classic Hunter would be the best and they are easy to tune.
I've also used Sierra 130 TMKs, ELD-Ms, SSTs, Core-Lokts and tipped Core-Lokts (I honestly think these are SSTs) on stuff from ground hogs to deer. I don't have any experience with all copper bullets yet.