I concur with Chuck on the estimable qualities of the compression-formed Remington hull. STS and the cheaper green Gun Club and black version are all made the same way and all are usually available for free at ranges with shotgun target games. "New" AAs are also usually available and, with the exception of the horrible gray Supersports, worth scavenging or saving if from a box you purchased. Having dissected several "new" AAs I can say that the separate base wad is thoroughly bonded to the wall of the hull. However suspicions about this hull linger.
jack