I've been buying winchester hardball for $21/50 and various low rent others for ~$18/50 since I bought my .380 in May of this year.
I've been shooting 2 five round mags per week just to get acquainted with the little gun, a S&W Bodyguard...
I frequent 4 stores that carry ammo, and 3 of those consistently have .380 fmj on the shelf...
All 4 stores have the premium defense loads on hand...