THE 340 WEATHERBY bar none, but because you chose to ignore a few of the best ever.........300 Wby, 300 RUM, 8mm RM, 338 RUM, 340 Wby, 358 NM, 358 STA, 9.3X62 or X64 or X300WM, just to name a few, I'd have to go with the 300 WM which is no slouch in any arena in NA. Even the big bears will succumb quite nicely to a 200 or 220 gn Part from a 300 WM. I used one for years before going to the Wby but didn't really feel the Win Mag lacking a bunch, the Wby just gave me a tad better range and drives heavier bullets a bit faster.