Some of the wildcats have to be fire formed, trimmed, annealed, Etc before loading.
I'm not into that
I reckon I would have liked the 25-45 Sharps. Based on the 5.56 NATO, but no trimming like the 300BLK. Just a .257 bullet about 90gr shoved into a 5.56 case, same COAL and everything. If only I could buy the barrels from somewhere other than Sharps and the rounds at academy or Walmart.