As others have said, Super Vel started an ammo revolution. However, it took several decades for the ammo companies to get bullets to perform at pistol velocities.

Not to be overlooked, early high speed hollow point ammo had exposed lead at the tip. When used in autoloaders, often before we learned how to polish the feed ramp, the ammo would drag on the ramp and fail to chamber. Eventually, they figured out how to make hollow points without any exposed lead.

I believe that it was the first-generation ammo that caused so many stoppages during the "chopped-and-channeled" phase of gun history where gun smiths were lopping off an inch or two of barrel on otherwise perfectly good handguns, compromising reliability.