FN made a number of 32" Sporters in D2 Grade in the 2000's , I acquired one, used, from a Texas Dealer specializing in sporting guns. Gun was originally imported by Charles Schnieble at BSA Millbrook, NY. I have seen a couple of dozen ( no exaggeration) narrow (game) rib sporters variously marked Browning or FN , or both, in both single guns and matched driven pairs in use in the U.K.
Mine was an 8 mm flat rib originally bored 1/4 and 3/4 but had Teague thin walls ins place when I bought it..... Went on several high volume So. American and European hunts with me. It now belongs to a shooter in Kentucky.