Who actually uses the SAAMI reamer on AR barrels?

[smokinghole]

This cloudy chamber BS might just drive me towards another caliber completely. I didnt think buying a barrel woukd be so difficult nor so expensive compared to other calibers. Sure they dont have the distance or performance that drew me to the grendel but I will not likely be fortunate enough to stretch this caliber's legs in my area.

Depending on what I hear from Mark this desire to build a grendel AR may be dead in the water for a while.