Another plus for shotguns are that you can use historical guns in the field, here's one of my old shotguns a late 1800,s Birmingham built hammer gun. ......
And here is the old thing in action (black powder proof only)
http://s1066.photobucket.com/user/tomburras/media/Mobile%20Uploads/2016-05/C2820242-19EE-4C33-BFBD-9D4F772664D9_zpslhtkwlln.mp4.html
The sound, smell and smoke all add to the fun. Can be tricky getting a second shot in tho when your surrounded by smoke lol.
I can't think of any properly old airguns that can be used like their modern counterparts - can't beat