To fire the Paterson, the shooter thumbed the hammer back and the action rotated a chamber in line with the barrel and locked the cylinder in place. This also caused the folding trigger to drop down from the frame into firing position. The sight picture consists of a front blade and a notch in the tip of the hammer. This sequence is repeated for each of the five shots in the cylinder (although the safety-conscious shooter will load only four, leaving the hammer down on an empty chamber for routine handling and carry.)