My local shop starting making polly coated hard led cast bullets end of last year. They significantly cut back on smoke and fowling. I was talking to the manager and asked about 9mm leadind in a carbine and they had not tried them so he gave me a box to try out. I did a review of them along with some chronograph numbers. After a couple hundred rounds through my 9mm AR I had no lead at all and I was pushing them at 1400FPS. The review is here.

King Shooters Supply

May be an option if they make them in the size/weight you are looking for.