According to Michael Bane’s blog, a major ammunition manufacturer will bring a new .380 loading to the market that is specifically designed for the Ruger LCP. This is exciting, as two current problems exist with the current crop of ammunition and the LCP.
The first problem is the .380 ACP cartridge is an underpowered chambering. Generally, the .380 loads are weaker than what is available for the .38 Special. For self defense, you need all the bang you can get.
The second problem is I have been getting some reports that the LCP is ammunition sensitive. Some popular cartridges are not feeding properly. This, of course, is a HUGE problem if it extends to the entire line of LCP’s and not just a few examples. One of the reports was posted as feedback here (scroll all the way down).
Time will tell who brings what to the market. However, Bane has a lot of good contacts and I expect this information is very reliable.--http://www.gunsholstersandgear.com/2008/07/02/new-380-acp-ammunition-tailored-for-the-ruger-lcp/