How in the world can he think he is the orignator of the short fat concept? I made a .378 Weatherby shortened to 2 1/4" and necked to 7MM at least twenty-two years ago. I used 96 grains of H870 to propell 130 to 3,330 feet per second. There was just no way I could match the velocity of my 7-.300 Weatherby's velocity. The bold would get hard to lift if I added even two more grains. I used 85 grains of IMR7828 to shoot a 150er at 3,525 feet per second. I don't believe the 26" barrel on the short fat was the reason it was that much slower than the 28" barrel on the long slim one.
And for accuracy either one would occationally shoot sub 1/2" groups. I worked up a compromise between the most accurate and highest velocity for both.
