if your looking for tough gun case that will last your lifetime look into pelican cases. i bought there model 1750 gun case for around 173 dollars shipped! they are air tight water tight and made of thick flexable plastic. they come on 3 different sizes. short, medium, and long. they come with a 3pc. foam in them and you cut the middle layer out to the shape of your firearm. they are lockable too.

http://www.dxercase.com/catalog/item/1210003/697598.htm

http://www.dxercase.com/catalog/item/1210003/697600.htm

http://www.dxercase.com/catalog/item/1210003/697604.htm