Albert’s (formerly Taurus) used to sell some interesting bullets. One, as you mentioned, was the original HydraShok Scorpion especially for .38 snubbies. They also had a 130gr LSWC-HP for the 9mm. They also shot well from Colt .38/.357 revolvers with their slightly tighter bores. Another was a .45 cal. 250gr LSWC-HP with a cavity big enough to mix a drink in. But my favorite was the .30-cal. 154gr “SchuetzenPlinker.” It was a two-diameter design, with the bearing surface being .310” and the forward section .300” to ride the lands. I used to buy these by the thousand. 7.2grs of Unique sent these downrange at a trifle over 1,000 fps, and provided lots of low-cost, accurate range ammo. All of Albert’s bullets were rather soft, and didn’t take kindly to higher speeds. The SchuetzenPlinker required some special loading techniques. You HAD to flare the case mouth, which is easily done with the right die. Also, since this was a very low-pressure load, the cases didn’t expand to fill-out the chamber. By controlling the case neck flare, it was possible to minimize blowback from the poor gas seal. I also found it necessary to enlarge the flash hole so that the primer blast wouldn’t push the shoulder back and cause headspace issues. Regular cartridges are pushed forward but the higher pressures expand the case and leave the shoulder where it should be.