You can never have too much ammo, just not enough mags to load it up in.
Yes, I have alot of LEO ammo, but most of my ammo are reloads not factory and all my reloads are only used for practice but I try to duplicate factory loadings so that I know what my pistol will do when I need to use it. I refresh my SD ammo through two mags at a time every three to four months, just to see how they function and for feel.