I've killed a number of elk using the lowly .308 and 165 grain Sierra hollow point Game Kings. The are superbly accurate and on elk and mule deer their performance has left absolutely nothing to be desired.
On the negative side, past 600, due to their very poor BC, and essentially having the ballistic resemblance of a pumpkin, they really get blown around by the wind.
Due to this I try to limit my shots to under 6, with most ending up being in the low to mid 4s for whatever reason.
Personally once I run out of my supply, I'm switching over to scenars, due to their excellent accuracy, and excellent long range performance. That however is a whole other rabbit trail.
