6.5 grendel for elk?

[volcomdork182]

hey, first post, but i used the search engine and everyone outside of this forum seems to have doubts about a 6.5 grendel taking out a elk. Many say i should switch to a .450 bush or .50 beo but the range of accuracy is to about 250 without excessive drop. So my question is: Can a good bullet in a 6.5 take out a elk at 300 yds or less? Also i live in Oregon and we have Rosevelt elk over here, so their racks aren't a "awing trophy" but their bodies and masses are huge.

Thanks,
volcomdork182