I just took my old fn built browning a5 light 12 made in Belgium out shooting skeet this weekend. It's hands down my favorite shotgun I have ever shot. Lightest recoil, great range with a 28 inch ribbed barrel, and it never has jammed on me once and I tend to only shoot it in the cold, mainly because I'm worried about my other semi autos jamming. But I was wondering if anyone knew how I could date this gun. I got it from my grandfather about 10 years ago, but I haven't found any info on how old it is.