I've called, emailed, msg Skip on here as to details on the adg 7lrm brass. I personally thing the 88gr capacity and long *** neck of that case will give 7wby perf with good barrel life. I still have my old barrel and would put it back on if they'd come out with good brass.I am not sure what manufacturer it is, I got the brass from them roughly 6 months ago. I hear they are now getting their brass from ADG. It still looks like the Hornady brass though as the weight of the brass is all over the place. I just started with this load so I will have to wait and see. I haven't seen any signs of issues yet but it is early in the process.