Grendel vie six8 recivers

[am4966]

My CPD/duramags allow the same coal length as these mags.

As to any extra speed I really haven't payed attention to see what I am getting compared to others.

Now I do have one of the mags I windowed that I can load much longer loads in but that's only usable with the 129 ablr bullets.

I have been doing more testing to get the mags to hold and function with 30 rounds then I have been doing load work.

Will return too doing load work soon.

Ok, Roger that! Great info A5B on your writes up here within this thread