Virtually all of my friends and most of the people I know are reloaders.
They and I shoot a great deal. Most of us shoot in competition at least two or three times each month year round.
We order reloading components in bulk, and I do mean bulk, from either a distributor or the factory in some cases. Ten or fifteen of us will order at a time. This cuts costs very considerably, and it insures that we always have what we need.
I never purchase fewer than 10,000 primers or bullets at a time, usually more. My friends do the same. If one of us should run out of components before an order is put in, some one of us will lend him a thousand of whatever he needs.
So, no, none of us have been affected by the ammo/component shortage. We were all affected, however, when lead prices shot through the roof over a year ago. Fortunately, prices are back down now. So while the prices are low, I will be adding additional bullets and shot. Primer costs have not come down. We have switched to Russian, Chinese, and Korean primers and they are as reliable as Federal and Winchester at substantially less money. Powder prices have not come down either, but we buy by the five and eight pound container and rarely less than a hundred pounds, and that helps costs.
If you don't reload, I urge you to give it a try. It is easy and safe if you exercise a little care. And it will save you a bushel of money.
I now shoot 1 a month because I can't reclaim brass at these events. 
enough factory ammo to shoot 5 matches a month.
