My .40 was a Kahr P40. The light weight of the P40 increased the perceived recoil of the .40 in my arthritic hands. The price difference in .40 versus 9mm ammunition also discouraged shooting the .40, so I sold it. Nevertheless, in the right gun with the right loads and in the right hands I believe the .40 is a very good SD and LEO cartridge.
NRA Life Member - RMEF Life Member - Vietnam Vet