Given the problem you have with your trigger hand, I'd consider a Mossberg. If you have to use your pinky finger to pull the trigger, I don't see how you are going to reach the safety at the front of the trigger guard on a Beretta. A gun with a behind-the-trigger safety (Browning) might be doable, but the thumb-operated safety on a Mossberg would seem to be the most expedient for you.
