ratsmacker,
I know an outfitter in eastern Montana who guides a lot of hunters to big whitetail bucks--and there are some big-bodied deer in that country, where quite a bit of corn is grown in certain areas. He HATES any kind of "premium" bullet, because they don't kill as quickly as the 160-grain Sierras he shoots in his 7mm Remington Magnum--the rifle he sometimes has to use to follow up and finish bucks shot with various premiums.