I thought that the weatherby 30-378 was about as much powder as could be burned in a .30 caliber. Then I read in Handloader magazine about Ross Seyfrieds wildcat. He shot a nine inch group with it at one mile. Using 220 grain bullets sarted at 3400 fps. It did have a barrel over 30 inches, but I had never heard of this performance in a .30 caliber. Anybody have one?