For the doubters, Mackey's Landing Gun Store is beyond comprehension.
Many very large rooms and everything is divided in catagories...revolvers only in this direction, bottom feeders in another, shotguns, rifles all in separate very large rooms...etc, etc.
The ammo room is extremely large...literally like strolling through a large supermarket but with ammo instead grub. All brands and calibers, out of production and in.
It is more overwhelming to me than going to a Bass Pro Shop and trying to pick out one fishing rod.
A few years ago I had a bad itch for a short barreled Ruger Vaquero .45 with the birds head grip. This was when these guns were semi-hard to come by. Mackey's had a display case full of them.
If in doubt, check it out.