I have an 1894 44mag made in 1977. I just got this from a friend and it will not load a cartridge into the chamber. It looks like the lever isn't lifting the carrier up enough for the bolt to catch the back of the cartridge. If it does catch it, it just jams the bullet into the wall between the chamber and mag tube. The parts appear to be correct for the rifle by comparison. I cycled it with the loading gate out to get a better look at it and it looks like the lever just barely brushes against the carrier. It moves it about an 1/8" up and that's it. What am I overlooking? Please help!!!