Knights and Whites are pretty accurate, usually. Others can be, but it is more of an individual thing with CVA's, Traditions, etc. The BEST way to get an accurate ML is to have one custom made using a barrel by a maker who is known for the accuracy of their barrels. Barrels such as Getz, Coleraine, etc.

Here's what a custom barrel can do-these barrels (a .45 and a .50) were made by the late, great Bill Large. Both shot at 100 yards.