Do not carry that pistol until you are comfortable carrying it with the round chambered. Period. Stick with the revolver with which you are familiar and comfortable.

From a purely mechanical perspective, one of the safest handguns to carry ready to use (round chambered, cocked, safety engaged) is a 1911. You have the mechanical safety, the grip safety, and the one between your ears that helps you keep the booger hook off the loud switch. One has to be really really dumb and really really clumsy (more than I am, which is a feat) to have an ND with a 1911. I carried one as a duty weapon off and on for several years and it is a very user friendly weapon and quite safe if one is properly trained.

It is not all that hard to have an ND with a revolver, if one is careless. It might be a little harder to do than with a pistol, but the level of negligence required either way is indicative of needing a guardianship far more than a pistol, a car, or a real knife. If you have gone 5 years without being that careless with a revolver, you should easily transition to the pistol without any real risk as long as get a little help with the transition in terms of psychomotor skill training.

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NHI, 10-8.