I don’t ever really run low on certain cartridges because I recognize low prices and buy a lot. Two years ago 9mm 115grn fmj range ammo was available by the case delivered for $0.14 per round. I bought a few shipments.

In the past year I have supplemented my stock by paying $0.42/rnd/case delivered; then $0.38 delivered, and most recently $0.35 per round (1000) delivered. Given what I had in stock, my average cost to shoot 9mm now is about $0.20/rnd.

My next buy point will be <$0.30/rnd, but just one case. At $0.20/rnd I’ll start buying more regularly. I don’t think it will go much lower any time soon.