I recently purchased a mosin nagant 91/30 and i have a slight problem that i ddnt realize untill after it made the ride home. The trigger is rather loose and can be moved forward about a half an inch. As a result it seems that the notch on the end of the trigger doesnt fully engage the bolt and if you jiggle the bolt in the right way when it is in the open position the bolt will come about without depressing the trigger at all. Does anyone know the way to solve this? What is a typical trigger pull on a mosin?