I shoot WT's with a variety of cartridges ranging on the low power side being a .44 mag to a .338 Win Mag. and .35 Whelan on the up power side. They are all my best rounds when I use one of them because when I select say the .44 in a handgun I have done it because I want the challenge of the limitations that particular firearm brings with it. I know I am going to have to close the distance on a 200 yard animal or I will have to pass on it. To me, that is what makes it interesting. My go to rifle is an old pre war M-70 Win in 30-06, but last year I let it set more because my G2 Contender with a 24 in. barrel in 30-30 was so light it was a real joy to carry. I guess my best whitetail round is what I have in my hands at that particular time.