I shoot my Purdey hammer pigeon gun one heck of a lot more than I do my light game gun. The pigeon gun gets use on the sporting course, practice modern skeet field, and some hunting conditions where tight chokes are needed. The light game gun gets a few practice rounds of modern skeet before the annual trip to "down" Maine, and [if i'm lucky] 5 or 6 shots at a few pa'trige; no, I mean grouse [they do fly]. I also use the game gun for a few "put and take" "hunts", where the tight chokes of the pigeon gun would result in nothing but mincemeat. I really like my pigeon guns, and have too many, but don't care!
If you decide against the pigeon gun, there is a very good 70's vintage Purdey light game gun comming up at Julia's in March, fresh from an estate, it only needs a hinge pin.

All the best, Mal