Great thread, bet there will be some new additions:

All with 158 gr lead:

38 Spl:
3.5 grs Bullseye
4.0 grs WW231

38 Spl +P:
5.6 grs Power Pistol
5.0 grs Universal
5.2 grs Unique

38 Spl Remington "Hi-Speed" 158 gr lead equivalent (catalog number 6538, circa 1970) - 6.0 grs Power Pistol with 158 gr Speer LRN and CCI 500 primers

(chronograph confirmed that this load approximates velocity of the actual "Hi-Speed" round in actual revolver, not test barrel)