I just purchased a model 46 and it won't feed, I think it has something to do with the elevator. The rounds will exit from the tube but they don't get pushed up far enough to engage the extractors fully. It has a j shaped elevator and 2 leaf springs but I don't know if the previous owner assembled it correctly. All the info I can find is the J faces towards the rear with the notch down, but the pictures only show 1 spring and not 2 for that model. Thanks in advance.