my problem is that I have been squirreling away ammo (reloads, mostly) for many years, and I can't replace what I have for anywhere near the cost, today.
Got a 1200rnd case of 7.62x51mm back when it cost me $165. Can I replace that today? yes. What will it cost today? A HELL of a lot more than $165!
All else being equal (and it almost never is) bigger bullets tend to work better.