I picked up another couple thousand Winchester AA hulls and I have found maybe 100 boxed AA GA hulls in great condition.
I cut a few apart from the first batch and this second batch I have. There appears to be at least 3 designs of the AA base wad that I have found. There are two versions of the “GA” wad. One is a two-piece and one a one-piece. The HS is a two piece base wad with 2 added ridges however they only would help retain it to the hull and not the base.
I load with a MEC, I shoot a single barrel break-open and at this point and I’m thinking that I will use the Boxed AA hulls. I have spoken to one of the wad manufactures and they said there could only be a problem using them if you load on a Spolar or a Ponsness Warren which push the primer in from the bottom only and IF the base wad was undersized because it was not left in the injection molder to cool long enough and it shrank upon ejection. This condition occurred early on in production I was told.