Most savvy, law-enforcement agencies were using hollow points in their revolvers in the late 1960s, but some stuck with round nose lead .38s because they didn’t really care or because of the horror stories of how cruel and inhumane it was to use hollow points. I remember how people frequently mentioned how it violated the Geneva convention. Semi auto’s were a different story and Colt 45’s, Walther P38s, Smith 39s, and Browning Hi Power’s wouldn’t feed most jacket hollowpoints. Gun manufacturers were slow to change back then, but it eventually happened and hollow points became the rage. Super Vel, Black Talon, Hydra Shok, Flying Ashtray, Golden Sabre and other new words were heard as HP ammo was constantly being improved. All the major ammo manufacturers continued to put research and development into new bullet designs and market them as the latest and greatest “must have” design. Many decades later I’m sure the 40 ammo is just fine now.