that is, within reason, a subjective description. the instructions tell us to close the action so that it takes firm pressure (i'd guess you'd call it that) to open the action with the release lever.
it aids accuracy with a Handi' to close the action energetically.
if you are shooting a lot of ammunition that somehow wound up with soft primers i'd expect the action to possibly stick. also: hold the trigger down a little longer when you fire the rifle to be sure that the hammer spring is allowed to do its job of sufficiently hitting/activating the captive firing pin. a weak firing pin spring (or a weak action on the primer by one....such as might be happening here) can give you a 'cratered' primer i believe. this might make it tough to open the action.
take care,
ss'