Birdhunter50,
My 12ga barrels show a load table of 2.2 g Schp. N/A over the 32 g bl. This is the obvious difference in 12 ga from your 16 ga. I am not totally sure of the N/A stamp. This seems to be a stamp of a different size and font. I assume it may mean a reproof at some time with more modern smokeless powder.
The gun weighs in at 6 lbs and a couple of ounces. I only shoot light target loads of 1 to 1 1/8 ounce. I don't want to beat it up, or me. The l200 fps loads break clays and kill birds just fine.

I missed by a few minutes buying a Nimrod true boxlock 16 bore. It had extensive engraving and relatively short barrels. Very light weight. I have seen advertised a coulple of these guns in a combo sxs configuration.