I'm not a fan of the concept of using target bullets on game over 50 lbs. But if you are getting results I can't argue with that.

Whitetail may not take much bullet, but they do take a lot of killing. I was very pleased with the 143 gr ELD-x. No matter what I an shooting I wait for a "sure" shot and kill. I've taken over a dozen with a lead round ball from a traditional muzzleloader. No worse ballistic coefficient than a round ball. But I've had bucks drop without taking a step.

Same with a bow. I shoot 1960's recurves, wood arrows, and a broadhead manufactured in 1960 (Mowoc Dot) and a well placed 45 ft lb energy arrow will kill a deer in seven seconds. That's actually pretty scary for those of us who play with sharp things.