A few years ago (1999-2008), underwater archeological researches were done near St-Malo (Brittany, France) on an 18th century shipwreck.
There are lots of very interesting pics (be patient, loading can be long and the website plan is not clear!) on this website. Take time to look in the chapter about weaponry, and also at the 3D reconstitution. They found an amazing lots of things which were on these ships.
http://epaves.corsaires.culture.fr/enThere is also info and pics about underwater archeology work (because these archeologist want to show what they do), although out of topic it is also interesting.
Some pictures also on the photographers' website:
http://www.teddyseguin.com/dotclear/index.php?2008/02/16/35-the-shipwrecks-of-la-natiere-a-major-french-excavation-siteAnd a short video in French on St-Malo city council's website:
http://www.ville-saint-malo.fr/culture/les-musees/musee-dhistoire-chateau-et-tour-solidor/les-canons-de-la-dauphine/Some explanation to understand this research: "la Natiere" is a large underwater flat rock near St-Malo. It has been a trap for ships because, most of the time, ships can go over it …but sometimes not. When the archeologist began their research on the wreck site they believed there was only one ship but later they understood that there are two ships sank one over the other. There have been identified, names are "La Dauphine" (sank 1704) and "L'Aimable Grenot" (sank 1749).