Recently purchased a nice Savage No.4 Mk1* to restore and noticed that the charger bridge is 'loose' (i.e able to be put back in place with the aid of a nylon hammer). I have seen where these have been welded up before and was wondering if it is necessary from a structural/strength aspect for the receiver or if it sits tight and remains in place is it something that can be left alone given the relatively limited use the rifle will receive?