115s and 121s are pretty heavy for .380ACP. Most loads use 95 or 100 grain bullets, plus they are less expensive than FMJ if you shoot lead or plated.
I have had good luck with 95 gr. LRN and 100 gr. plated Berry's bullets using Titegroup, AA#2 and Unique. I don't have the exact numbers with me but they are available on the manufacturer web sites, or at a couple of good reloading sites... handloads.com and reloadammo.com