Chris, ammunition time frames vary by demand and there is no way to predict restock at a particular vendor however, if you are in a pinch, I use AmmoSeek to track down ammo online realtime ---- https://ammoseek.com/

Well ammo right now is getting tougher to get as people are panic buying because of the coronavirus. I can’t tell you when it will ship. Did you get some hard to get ammo?

many manufacturers load ammo in cycles and if they run low it will be in short supply until they switch over the machines and make another batch