"Never" forget!! The bbls must move, before any cocking action can take place. The firing pins on a non-rebounding gun (whether independent or integral) thus actually form a mild "Lock" against opening. One of the most important things then becomes that the tips are well rounded & have a good polish, so they will be easily cammed back by the first motion of opening. As the bbls begin to move they should of course almost immediately begin to cock the hammers, so pins should not "Drag" down the face of shell. They cannot though be set so tight as to prevent full pin protrusion or you will be plagued by mis-fires. That absolute first motion will always be by the camming action of the pin in it's indent, so this must go smoothly. Protrusion should not be excessive, & there should be as litle lost motion as possible in the cocking mechanism, "BUT" on a non-rebounding lock some resistance is purely & simply "Un-Avoidable" & must be lived with.
