I’m a little confused by your question. It doesn’t matter what length the overall bullet is you still need to load it to the correct COL which for 380 differs very little.
Also what do you mean by not working out?
Contact the owner at Penn and ask him, he’s been a big help to me over the years. He also has a short 100 Gr. His Tech support is open throughout the day at the number listed on his web site.