Originally Posted by Paul5388

If you look at a slow motion video of a handgun being shot, you'll notice the bullet is long gone out of the barrel before there is any upward recoil. That would indicate a lighter bullet at the same velocity should impact at the same place as a heavier bullet. I haven't actually tried that scenario, but I can assure you barrel time is not the reason, as I used to think, for light bullets shooting higher.

45 ACP Revolver vs Pistol Recoil Slow Motion - YouTube