By answering Bark'n's query we would be able to give you proper advice, (good job on that Bark'n).
Since the gun is brand new possibly a break in is required? How many rounds, (FMJ's), have you run through the gun? It may just need to loosen up a bit by being fired. If it were mine I would rather run FMJ's in it anyway being it's a .380; I would prefer depth of penetration over expansion in that round.