Many people assume Sierra bullets are soft - across the board- without realizing that Sierra relies on specific lead alloys in the core material to help control the expansion qualities of the bullet. This together with jacket alloy (bronze vs copper for the Swift) as well as varying characteristics specific to the bullet in question, mean that some Sierra bullets act pretty 'hard'. The 338 Gamekings are among them. (I have driven the 250 Gameking completely through the shoulders of a large moose (at 400 yards) where a 250 Grand Slam on a very similar shoulder shot at around 200 was stopped. Both largely involved shoulder muscles rather than bone. Both were fired from a 340 Weatherby.)
Last edited by Klikitarik; 04/17/15.
