223 vs 6 ARC vs 6 Creed

[The Guide]

Hornady loads 88gr ELD-M in factory .22 ARC -- but not in .22 Creedmoor.

7 twist vs 8 twist on the SAAMI approved print. 22CM speeds the 88 ELDM isn't a fan of an 8 twist. At 22 ARC speeds, an 88 in a 7 twist shoots great. This is what I assume. Sounds like the 22CM should have called for a 7.5 ot 7.7 twist barrel for the heaviest bullets yet still not spin the light boys into dust.

Jay