I haven't tried enough broadheads to give a good recommendation, but here's what I have used or have in my quiver:
Ironwill 100 grain solids
QAD Exodus 100 grain fulls
I also have Ramcats, but haven't shot them enough to get a good feeling about how they would do on elk, but I suspect they would work well.
My setup is 540grain arrow. Easton Axis with 50 grain insert and 25 grain collar, and 100 grain broadheads. I shoot the same setup at everything I hunt (deer, elk, hog, squirrels), although I typically shoot different broadheads depending on the situation. Granted I'm shooting 70lb with a 30" draw. If your deer setup is shooting good, I'd just trade the expandables for fixed blades and let her rip. Try to have the broadheads hitting consistent beyond your comfort range and enjoy yourself.
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