SWC's usually don't feed worth beans in any .45 even with a proper taper crimp. Too many squarish edges to get hung up.
Chamfering the feed ramp might help. Essentially you're extending it about half way up the sides of the aft end of the chamber.
The FP's Max Power speaks about prefer it too, but they'll feed much better than any SWC. So will an RN.
If you're not using a taper crimp, you should be with any bullet. That alone will fix a lot of feeding issues with a .45. It doesn't need to be a huge crimp though.