Looking at a bowhunt? That is why you are worried about griz?
Dillon will have quite a bit more elk. Have friends that go down there and score elk every year. Dillon is kind of known for lots of small bulls, but some get some big ones every year for sure. 300 is a big bull.
Most of the guys I know that head down there, go in rifle season. Year before last all they saw were wolf tracks, last year, they said there were bulls everywhere. 4 of 6 came home will bulls, one was 340. So you never know, wolves definitely move game around.