What exact issue are you having? When I first started loading mollys I had feed issues, but was informed that I didn't have enough crimp. Different cases have different wall thickness and that makes it seem random. You should be crimping enough to put a line in the molly, but not enough to go through the coating. There is a measurement, but I can't remember it at the moment. If you crimp too much, you can cause the molly to bulge at the crimp line and cause a failure as well.
Also, with a 2011, load long to get ride of feeding issues. With mollys I'm at 1.180. With jacketed I'm at 1.200
Hope this helps
Also, yes, you will need more powder for long loads. I use to run N320, but switched to WSF and WST for cost and availability.