I have to say after owning both caliber guns, and reloading for both, that the .40 does seem to have a larger recoil than the .45, however, if I want to carry for concealment, most CCW guns in .40 are smaller in size, e.g., Kahr P40..much slimmer than any Glock .40. As far as department issue, I have to agree with the Sheriff..give me a .45 for duty use..got to love the .45!!