Well the article mentioned that they had 5 different calibers but only mentioned two specifically. 6mm was one. A fine little round to be sure but certainly not something I'd trust to make a clean kill at 800 or more yards. The other mentioned was the 338-378. By this I assume they are talking about the Weatherby 338-378. A powerhouse round to be sure but at your suggestion lets examine some ballistics shall we. With a 200 grain bullet starting with a muzzle energy of 4983 even the 338-378 is down about 55% at 500 yards to 2213. Now ballistics beyond this range are scarce but even if the energy decline remained constant for the next 500 yards (which it most certainly will not) the 338-378 is down to 995 ft lbs at 1000. This is less than the muzzle energy of a 44 magnum handgun. And remember thats if the energy declines at the same ratio over the second 500 yards as it did over the first 500 yards. Which is not feasable. It will actually lose more energy over the second 500. So, the actual remaining energy at 1000 yards will be less than 995 ft lbs. Or as Rack implied way back when "down in the range where shot placement better be very good."

I also reread the article. No speed read this time. Here is the line that struck me most this time around.

Ahhh, now there's the hallmark of a man who's proud of what he's doing huh? NOT!