How about a modified M1 with a magazine and a 30-06 round?................................. I had the M1 as an EM, the 8 rounds may have been 16-24 if they adapted it to a magazine. The M-14 had a different receiver. It was gas operated too. The Italians found a way to convert the M-1 to carry more ammo. We could have saved a bundle on R&D. I only disassembled a M-14, I went through OCS with a M-1. The next rifle I saw the M-16 that was still around in 92’when I left. They still had M-1 carbines when I was in.
Far as I know, the BAR was the only rifle that had a magazine that took the 30-06. Funny, same as I posted earlier about worn out M-1 Garands, we familiarized with the BAR. Learned fast to find the magazines with firm springs, the sloppy ones would not feed.