Since you've got some time and the bullets, it's worth a try, but be prepared for them not shooting particularly well for reasons that have nothing to do with the twist. If you have early success, fine, but with only 50, you're cutting it close, so have a backup plan (Partitions). It's also possible that you can find some more on ebay or Gunbroker, but I wouldn't pend the money until you know they'll shoot.
Good luck.
