Personally I think the lockup on every gun is different as regards tightness and the amount of effort required for the toplever and underbolts to engage to the proper position.The right method for one gun may not be the best for another.If an action is new or recently tightened and all parts a snug fit,(in some cases too snug ), it may require the action to be "snapped" closed without holding the toplever, until such time as the action has seated in and does not require the same momentum.On handling a gun for the first time I always assume that it does not need to be snapped shut and will hold the toplever over and push into place in order to assess the tightness of the action.Most guns once they have had some use and the bolting has seated in, do not require being snapped shut and I see no reason to submit a gun to the unnecessary wear and strain. JMHO.... Terry
