This is the main reason I quit buying Boyd's stocks. There is just not a lot of meat left once everything is milled out. Mine always seem to break around the rear action bolt though. You can mill/dremel a slot across the stock and epoxy a metal bar in there to hold it together. Some people have drilled holes all the way through and sunk bolts in...then cover the holes. I don't think trying to glue that crack will solve your problems.