But don't they do these penetration tests in some type of gelatin substance? I have always had trouble correlating that to hitting a big bone. Haven't seen any data that applies to the real world. Have you? I have always made the assumption that a 175 gr will outpenetrate a 140 of similar construction when it hits a shoulder bone. May be an erroneous assumption, but lots of nonscientific word of mouth would seem to indicate that it would.