Looking at some articles in Double gun journal ,my gun was made in late 1899. It has steel barrels (made by Krupp) going by the barrel stamps. I wouldnt mind finding out whether the action is strong enough for full power loads. I will be sending it down to Mialls to get some other work done ,maybe they can give me an idea of its strength. If it is not over strong ,then I will just use it with 24-28 gm loads.