Our small club (in the UK) buys around 80k of 22LR a time, just lead target ammo for the indoor range, which keeps us going for a little while. When we went to replenish supplies a week before xmas, and found that wholesale supply of 22 target ammo had all dried up. We are now rationing 22 ammo, as from report from the importers we will not get more until Feb!!! They do make 22LR in Europe, but it is mostly high quality expensive target ammo.
The importers thought 22LR was not going to get hit by panic buying in the US, but it sounds like they are wrong!
Lucky there are quite few big manufactures of primers/powder/bullets in Europe, so we have no problem with supplies so we can reload centrefire at least! I guess we might putting away our rimfire rifles, using our centre fire guns then!