Hmmm, depends on the caliber. For my 22lrs, I shoot what I carry in my LCP Lite Rack, G44, or 43c which is Mini Mags Target 40gr solids. I keep 2K of that stuff on hand cause it’s what I shoot the most. With my 380s, which is usually Blazer Brass FMJs, I keep three or four boxes on hand cause that’s what I shoot a month. 38s are WCs from my reloading bench, same for my 32s, and I load and shoot about 300 a month in them. About the only centerfired ammo I buy is 9mm and I keep about two boxes of JHPs on hand. It gets shoot yearly, then I buy more.