I like the RCBS 270 SAA SWC.
2nd that!
...and a 3rd! That's about all I use in 45 Colt anymore. I also like the 335 WLN in 454 Casull.
A load with 18 grs of 4227 and that bullet shoots dead nuts to the sights at 25 yards from my 4 5/8" Standard Manufacturing SA. That SA will see no other load.