Weatherby Euromark .378 magnum. Weatherby stuffed that cartridge into a standard sporter-weight barrel and stock. That baby was whiplash and detached retinas when you touched it off and had a muzzleblast that would curdle milk.
I have to give Weatherby credit though. They claim 1.5" groups with their rifle and ammo and that rifle would shoot 1.375" groups at 100 yards. Three shots was about all I could stand.
The factory ammo also chronographed within 3 fps. of what the Weatherby catalog claimed.
