Accurizing a Grendel - Accuracy Advice

[Kosh65]

First off……. I’m not an AR shooter. I’m a bolt gun guy. But as many have mentioned, the barrel is usually the key to building a great shooting rifle. And as lazyengineer wrote……crown, chamber and throat are what matters most. The twist rate (1:8 or 1:9) should be more dependent on what bullets you are wanting to use. But IMO is probably moot.
I built my Rem700 Grendel with a 24”, 1:8. My 6.5-06 Ackley is a 24” 1:9.