Not sure where you are getting your information from but the above statements couldn't be further from being accurate--I can name several "hunting bullets" that are over .500 bc--go to noslers web site and look up accubond-they have the standad and long range versions that both exceed that..or the swift scirrocco that is around .570 or in that range--or the Berger hunting bullets..140 gr at .612bc compared to .487 for a 270 in the same bullet configuration and weight..

There is no way the Jack O'Connor favorite in .270 even comes close to the same ballistics in the .264 caliber given the same velocity ..whether you are shooting at paper or animals..neither of which bore me..each to their own, but if I can get an extra 8, 10 12, or 16 inches over another caliber at given ranges I will take it..increases max POA along with several other advantages with todays available optics --IMHO, the 270 gets much more credit than it deserves..
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As to the other statement...shown below..by 500..

How many people seriously use a gun past 350 yards ?

or even 500 yards ?

Some competition shooters ? They are in a breed unto themselves.

Hunters ?
Probably not that many.

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Out where I live and those who I hunt with, depending on the species hunted, conditions, etc..quite a few actually shoot past 350...actually considered a chip shot by many...maybe to those who only hunt in forests or really close cover it seems long..but to those who live in the Western US..not considered a extreme range by anyone I hunt with at 350...agree once you get to 500 it starts thinnig the herd a bit..but is still done..and by those who practice alot and often and aware of the conditions..not that difficult to be done..my wife shot her antelope this fall over 500 with a 22-250...with a Tikka T3 lite..

I am not stating everyone should be out taking shots on game at distances they are not familiar with..and each to their own..but things have changed, optics have changed, rifles have changed, and technology has changed...a 300 yard shot isnt what it was 20 years ago..as long as people do their homework and practice what they preach. I shoot game with my bow under 20 yards and with my rifle at times under 100 as well..depending on where and what I am hunting..

So if the above is true..then I guess the west hunters I know are in in a breed to themselves..

Ripp