I've owned quite a few, 12, 12 mag, 20 mag, 16, Sweet 16...........and the only two that were different as memory serves (sold most of them) were the 12 mag, which was notably heavy (new with factory mag Pachmyer) and the 20 mag which was notably very light in comparison to the others......All F.N. guns..........
Glen Jensen at Browning appeared to be an older gent and very nice, therefore I would guess his information is correct ....?.....There is so much conflict in Browning data, dates of manufacture and everything else, "never say never"......
Midwest Gun Works is also very knowledgeable about Brownings and is a stocking parts dealer for the older obsolete Browning parts....I will ask a person I know there what his take is on the A-5 frame castings......
