Lately I have noticed more custom rifle actions out in the market place. The most recent that I have noticed is American Gun Company http://www.americangunllc.com/. The are currently making 1885 High Wall actions and are developing Controlled round feed, Push feed, Magnum Mauser, and several other actions. This company is an off shoot of McGowen barrels http://www.mcgowenbarrel.com/. I sent them an email requesting that they seriously look into building a double rifle action for gunsmiths. I asked for an Anson & Deeley boxlock with Greener crossbolt, possibly two sizes for medium to large N.E. cartridges. This action more than likely would be investment cast, but would be properly heat treated and modern CNC machined. They could supply the monoblock ready to go and you just need barrels, ribs, sights, etc. They already stock their 1885 High Wall, why not the double too. Let me know what you think or write AGC and request the same.