Which came first, the chicken or the egg? I've killed whitetails, close to a 100 of them, with 20 guage slugs, 223, 243, 6.5X55, 270, 7mm Mauser, 308, 303 British, 35 Remington, 50 caliber muzzleloader, and I'm sure a few more than I can't remember. The biggest percentage of my kills were with the 270 Winchester, and I don't remember having to track any of them.