...Ed Shilen used invevtment casting to produce his DGA actions and, while the design was great , the quality (froma BR standpoint) was inconsistent. The actions simply came up a bit short when it came to "trueness". At least on a consistent basis. This may have more to do with the methods used to machine the castings but there it is. GD
I think you hit the nail on the head. Unless the castings are poor quality to begin with (a different problem), there is no reason investment castings cannot be machined as true as forgings.
