beretzs, Elmer and Thompson pushed the shoulder back about a quarter of an inch on his .338/378. He felt a full lenght case was too over bore for 4831. He gained a bit of speed over the .340 I am not sure now how much. I am also not sure about the 275 gr Speer blowing up in the spike. He never mentioned a failure with that bullet that I remember reading about. I know it was his 50th elk for his own use. As much as I respect Elmer he had his short comings, but who doesn't. He was always concerned about the loss of meat. Something few other writers ever mentioned.
