My thirty or more year old 12 ga 1100 Trap. 30" barrel for ducks, geese and turkey, 28" mod for pheasant, 26" skeet barrel for speedy upland birds and a 21" rifled barrel for deer. Total outlay over the years, well under a grand. Only a 2 3/4" chamber but then, I've never been a fan of magnum shotguns. It has a 20 GA little brother in the safe with mod and skeet barrels and I find myself using it often, even if just for sub-gauge events.
Lots of other guns out there. I not a big fan if Turkish guns but have heard more good than bad about the TriStar Vipers.