This. And learn to reload. 7-08 is good. Either better than a .243 on stuff larger than a whitetail.
But as BS hinted, it's all in the bullet. High BC delivered first class out a fast twist tube.
....and if you don't reload, 308. And if you've never loaded, but plan too, prepare to spend some coin and a later bedtime. Upside is you'll shoot twice as much.
