If you are in a hurry for hunting season, you might try some other bullet selections.
and others until you can get some 215's and 230's
Other powder choices would be
Midway is estimating having RP 300 RUM brass next week. Put yourself on the "Notify Me" list.
You can also go the the LRH classifieds and post a WTB 300 RUM brass thread. I've gotten a lot of help doing that for brass, powder etc.
Also, this thread would be best in the Reloading or Classifieds