I've been shooting lots of hardball .380 to break in a LCP and P380. Eventually 1 will have to go, but for now I'm having fun deciding which stays and which goes. I'm leaning toward keeping the P380 if I can find a great BPH for it with the Crimson Trace attached. I might even send it back to Kahr for nightsights, but that seems like overkill with the CT on board. I've used PMC, Win White Box, and Remington ball. All worked great. MFS, was the only brand that gave me issues.
LCP likes Fiocchi Extrema HPs and P380 likes Double Tap 95 grain HPs. Both of those will do until I can lay in a decent supply of Silvertips or Gold Dots at a reasonable price per box.