Ryan,
It has been a while since I had castings made, but I am sure that I am paying at least double this price. I am very happy to be able to get castings done locally, but to get them done at such a good price would be wonderful. Maybe I will come to Tennessee the next time! The last batch of castings I had made were several sight vanes for 18th - 19th C. surveyors compass transits, not gun parts, but small brass castings like a very squared buttplate.
Check out the topic "looking for tips on making masters for sand castings". I posted several photos of the cast parts, the wood patterns, and the original artifacts.
Jim