Two of my hunting Buddy's have Sixteen's and they have ALWAYS had a problem getting shells for them - especially over the last 8 or 9 years. I don't think that Gauge is very popular anymore and most of the stores in these parts don't seem to carry 16's on a regular basis. In regard to Shot Shells, I think they have been just about the only part of this ammo crises that has been unaffected. The local stores here have an abundance of 12's & 20's and if you have a 16 or a 28 you're are SOL around here. When you find a stocking dealer you might want to really stock up as they are only getting tougher to find, not easier.