Gorilla Glue is the best thing I have found for holding lose nose weight in place. It is thick, expands to a foam about 4 to 5 times it size, and drys within two hours. It will expend to fill in around things like buck shot or a lead weight. Don't use too much, put a drop on a piece of scrap to see how much it is going to foam up. Gorilla Glue, it has a gorilla on the label, I got it at Ace. It is very strong, I use it to glue my street luges together before bolting them together.