Have you ever thought of lavishing a lot of time on each individual cartridge? With steps including not only tuning the dimensions of the cartridge, but also refining the cosmetics? For example:
1) Adjust flash hole using jig and drill press for optimal flash hole size and alignment
2) Deburring entire case
3) Trimming case to exact length followed by precision chamfering of the case mouth
4) Polishing the case, the bullet, and the primer cup to a high luster
5) Extreme diligence in priming and charging, for exceptional uniformity from case to case
6) Sorting all bullets and cases to within micrograms of uniformity
7) Engraving the cartridge with a message like "From the reloading bench of..."
Custom tinting the brass and bullet with chemical tints
9) Engraving the bullet with a message like "Death from afar", or "Here comes da judge"
10) Final waxing and polishing
11) Adding each finished case to a wooden or ivory custom presentation box, or on a custom cartridge board.
Figure each finished round should take 8 to 12 hours of bench time to perfect.
This could be a missing niche in the reloading market. Really! Have you noticed that you just can't find gold and lapis bullets at Midway or Midsouth? Isn't it about time?