I just sold my original Grendel upper, one of the 1st five ever made, and it shot great. It functioned perfectly for the 800 rounds, although one of the 10 round mags that came with it were not 100% (one was). My last two times out, I used the new 16 rounders with the new blue follower, 0 problems. Looks like AA has gotten the mag issue resolved.
No doubt, the wait sucks. Hell, I waited almost 6 months to get mine. Now I am waiting on a new F-Class Grendel from Speedy. Should be fun though, once it arrives.
You will be happy with your purchase, just have some patience. At least, once it arrives, you will have no trouble getting factory ammo and/or components if you roll your own. With the Lapua and Wolf ammo announcements, the ammo picture is very bright!!
You can go visit
www.65grendel.com and get some more feedback and load info.
In the same (waiting) boat - WTR