Re: 338 long range hunting bullets
I have had good success in my .338 lapu with the 300 grain Sierra Matchkings. With good performance on mule deer at 165 yards, Elk at 460 yards and oryx at 704 yards.
Of the now commercially available bullets, I think it offers the best BC, providing your rifle has a 1:10 twist they would be worth a try.
Steve in New Mexico
Hunting with my AR30 .338 Lapua