I've been handloading 250Sav and 250Sav AI for 40+ years and never ran across "bad" or low-quality brass from Remington, Winchester, Hornady, or Jamison; of course I don't reload 'em until they blow apart either. I see brass currently listed reasonably priced from several sources that I just checked. Why on earth would you want to go to the trouble of converting brass from a different caliber when its readily available?
Have you been measuring neck walls for uniformity? I've come across some real junk from Remington.
