I'm having a heck of a time getting the bolt out of one of my guns.In another gun the bolt comes right out,up and to the left--but this one isn't coming out.It's like the raised ridge of metal on the left side is keeping the bolt from coming out.Also the bolt doesn't seem to "lift " up enough to clear that ridge.Is it possible the "loaded chamber"indicator is keeping the bolt from rising enough to clear that ridge?