I've always reloaded with accuracy in mind. When I went to Africa for the first time, I took my 300 Weatherby with me, and reloaded 180 grs Accubond, and used the starting load. I couldn't duplicate the accuracy with higher velocity. The animals I shot in Africa didn't noticed there was a 200-300 fps difference between my reloads and factory ammo.
In elk country it may be different since you may have to take a longer shot, but since these are so accurate, I would check to see how they shoot at 200 & 300 yds.
The good news is you have time; the bad news is finding suitable powder.
Good luck with your quest.