I think we're comparing apples and oranges here. The Hornady charts just show bullet drop when fired from a perfectly horizontal test barrel that's locked in place. The only thing working on those bullets once they exit the muzzle is air resistance, any wind, and gravity (all being accounted for in exterior ballistics), because the barrel can't move except for it's normal harmonics.
But we're talking about the barrel itself moving from recoil when hand-held during firing. I think you'll agree, it doesn't take much muzzle movement to greatly affect bullet impact location (point of impact or POI) during regular firing. The tiny differences in barrel dwell time can lead to small differences in muzzle elevation at bullet exit, which can lead to big differences in where the bullet impacts the target (or off the target...), depending on how far away the target's located.
There, that should be clear as mud...