I recently purchased a couple of boxes of the Federal 416 Rigby Ammunition, loaded with the 400 grain TSX banded bullet. I wanted to test them in my rifle for an upcoming cape buffalo hunt. I fired 3 test groups of 3 shots each at a distance of 70 yards, and all 9 shots went into one ragged hole that measured 1.1 inches from top to bottom, and 5/8 of an inch from side to side. Absolutely unbelievable. I can't wait to see how they perform on the buffalo.
After a test of this ammo on one of Africa's most dangerous animals, Cape Buffalo, I can whole heartedly recommend these rounds. Cape Buffalo are extremely tough and tenacious animals. The triple shock bullets worked flawlessly. The expansion was as advertised and the wight retention was amazing. The rounds that were recovered from the animal were text book pictures of what the bullet is supposed to do and could probably used in Federal advertisements. Highest recommendation.