16 gauge load selection is somewhat limited, both in choice and availability. A box of shells in 16 g. also costs a couple of dollars more than a box of 12 g. One of the bigger gunshops in my area will order 12 and 20 gauge hunting and target loads by the pallet, but would make it though a year with only a couple of cases of 16. If you wanted 16 you bought what they had (if they had it) no choice except to smile and say thank you as you straightened up and pulled up your pants. The good thing is that it is getting better since Rem. started making shotguns chambered in it again, and others are importing guns also. Mail order (or online) is also an option and will bring the price per box down to a more reasonable level, but shipping may well negate any savings.
bergie