Originally Posted by
Red*Lion
6.5 Grendel is a great mid range-to long range round. My most recent build was an 18" Grendel using a criterion barrel. I have an existing Grendel upper as well. I have never had any type of feeding issue, but if I was to guess I would venture to say that some folks using less quality magazines may get them. Stick to ASC and Elander and you will be good to go.
I would not waste my money on a 6mm. Too new to have any selection of components or proven ammo yet.
I will also note that I am a fan of an AR in 7.62x39 as well.