A lot of L/R guys like high BC high SD bullets with some weight behind em. I have no doubt whatsoever that the ol' quarter bore can get er done, even on elk, but .25 cal, 115 gr bullets aren't excatly the "go to" for L/R on big tough game at distance. Yes they will work. & Yes shot placement is key, but the .25 caliber is and unfortunately always will be considered a "cross over" caliber from varmints to deer because that's the niche' it fits best in. The quarter bore shines brightest in that arena like the big .338's shine brightest on bigger critters, farther away. While a person could use a .338 LM on squirles & take his .257 Wby elk huntin, it just makes more since the other way around.
Don't get me wrong please. The .257wby is a fine cartrige, with a big following. They shoot flat as a laser too, but there are more appropriate tools for certain jobs. The .257 Wby will get the job done, but there are other cartriges that overshadow it for LR on big game.
Heck, the same can be said about my .270wsm, or even my .300wby when you put em up against a .338 LM on elk at 1k. You'll find that most of what goes on here is people getting to know thier equipment intimately, & using it to the best of thier ability at a range where they are confident they will make a solid hit & a quick kill. If you choose to do that with a .257wby then do it to the best of your ability. Your peers here will respect your shooting skill not just the cartrige. Heck we all have our own favorite cartriges, that for our individual hunting styles & ranges. Who's to say the .257 Wby can't do it?