Is an adjustable gas block generally needed on a Grendel?

[cb4017]

Over the years I've built my fair share of AR pattern rifles in .223/5.56, 6x45, 6.8 SPC and .308. Now I'm collecting the bits for a 6.5 Grendel.

I've always looked at an adjustable gas block as a crutch to fix an over sized gas port or a gun with some other unusual condition. Of the rifles I've built I have only needed an adjustable gas block on a couple of the .308 rifles.

My question, have folks found it generally necessary to use an adjustable gas block on a 6.5 Grendel build?

Thanks!