Re: 338 Magnums and grizzlies
I've carried .338 Win Mags for years here in Alaska (since 1985). My partner carried a .375 H&H, I had better range and accuracy then he did. He would only shoot the 300gr bullets, I shot 225 gr Nosler Partitions. Anything I shot went down just as fast as anything he shot. I have shot Moose and Caribou from 20 to 500 yards with the .338Win Mag.
Three years ago I went to a .338/378 Weatherby Accumark shooting a 225gr Nosler Accubond, at over 3200fps.
Two years ago I shot a Moose at 780 yards, with the Weatherby. A nice one shot kill, took out both lungs and the heart.
Last year I shot a Grizzly off a gut pile at 620 yards, with a 22deg down angle. First shot hit the lungs and went out the far side. Bear turned to run, second shot hit the spine and rolled the Bear. Bear rolled behind a bush, all I could see was the bear standing on it's front legs and head looking around. I put a third shot through the neck with an instant drop. It took two and a half hours for us to get down off the hill and across the swamp to get to the bear.
This summer we worked our range on out to 1200 yards. So we are ready for anything out to that. Then I ended up in the Hospital and missed Hunting season.