Good answers above, I doubt a stronger return spring will help much and may make it worse but its cheap to try. If the rim is under or right at the extractor, check tension and extractor geometry. Also if the FP hole has sharp edges some cases can hang there with almost the same result. Not suggesting you go there but if the chamber throat is sharp on the bottom it can be rolled over just a bit. Don't get carried away just break the edge. If the barrel is ramped I'm no help there. I've got a few guns that don't like the plated SWC's but will feed LSWC all day.
I have used more taper crimp like TenX suggested as well. Some say the plated bullets don't do so well with a lot of crimp.
Seat and crimp in separate stations if possible.
Magazine lip type plays into this as well, I like the mags that let the round rise a little early.
There are books written on this subject and every gun is slightly different.
Pics of the loaded round might help.
Good luck
ETA, this guy explains the extractor fit well.
https://www.1911forum.com/threads/steve-in-allentown-extractor-fitting.829865/

Last edited by blindshooter; 11/29/20.