Sarco Mauser actions sell for $295USD in the states. Tradex has them in Canada for $495CND. They are used by Dumoulin for their high end rifles. These actions have a double square bridge that is dovetailed and also drilled and tapped for apparently hard to obtain rings.They have a Winchester 70 type safety. Customers have complained that the pitch of the mounting screw holes and dovetails were not standard.The actions are Marked Dumoulin Herstal on the left receiver wall. What they do not advertise is that these actions are not made in Belgium but that they are in fact manufactured in CHINA. Dumoulin never made their own actions. They relied on FN,Sako,and others for their actions. These new actions are milled in China under contract by Dumoulin. Since they are produced in large quantities the majority are sold to third parties such as Sarco. Of all the places I saw them available there is only one small retailer that advertises them as "Belgian contract made in China". This is the site that at the very bottom of the page,in additional information,says where they are made. http://www.leverarms.com/mauser-action.html
Here is the Tradex site where they are advertised as Dumoulin:
http://www.tradeexcanada.com/content/commercial-dumoulin-m98-mauser-action