I have been hunting with a Win 270 in a Browning A Bolt the last six years and the only cartridge I ever used was a Remington 140 grain BST. The farthest I had a deer run after he was hit was about fifty yards and that was blowing out both lungs. I have been very happy with the performance of these bullets. This year I just bought a 270WSM and hope for more of the same results with the Winchester BSTs.