Just to clarify and respond:
The 300 Weatherby is faster then the short mag. When I wrote about the 300 VS the 30-06 I was referring to the short mag, not the Weatherby.
But even with that said, the 300 Weatherby does NOT go to 300 yd before its equal to the 30-06, but it at 217 yards when it reaches the 2700 FPS mark.
Secondly, I would point out that A 300 Weatherby is straining to get to 3200 FPS at the muzzle I am a gunsmith and I have been one for many years. I have built about 30 rifles in my life in 300 Weatherby and all with 26-28” barrels. I have owned a chronograph for many years and I heave actually measured the velocity of these rifles. You CANNOT believe the advertisers of some of the ammo manufacturers. A FEW can get a 180 to 3200 FPS but not often, and to do so you must get your pressures up to over 64,000PSI
The 30-06 can also be pushed to it’s max in a 24” barrel and run to pressures of about 60,000 PSI, and when you do so, you get about 2800 FPS, not 2700 FPS,
So the truth is still that even the Weatherby is not as much more powerful as those that love it might like to think.
Again I will say I am not dealing with theory there. I KNOW! I have made more rifles in the last 40 years than I can count, and I have choreographed most of them.
So if we compare top velocities at top pressures the Weatherby only beats the old 30-06 by about 400 FPS at the max, and 300 FPS is closer to the truth in probably 90% of the cases.
If you look at a 180 grain .308” flat base soft point bullet with a B.C. of .430 fired at 60 degrees F, and at 1500 feet elevation, at 3200 FPS muzzle velocity, we see that it is at 2750 at 188 yards. Better then the short mag, but not as much a “death ray” as most people think.
It’s faster than the 06 and therefore makes range estimations a bit easier, but it’s still the same bullet as the 06. Going faster is not always better. If the bullet is too fast it can break up more, and penetrate less. That’s something I learned guiding elk hunters over 30 years ago.
The 300 Weahterby is at it’s absolute best with Barnes X bullets so it’s velocity doesn’t cause the bullets to break up as badly as most other soft points.
The mighty 300 is an outstanding round, but it needs an outstanding bullet to be its best.
I stand by my observation that the best “all around” cartridge for the hunter is still the 30-06, meaning it’s the most versatile, covers the most bases, and it does most jobs well. Not all, but more then any other shell I can name.
I am not a die hard 30-06 man, because I love guns and I have several, in many different calibers. I like a bit more specialization.
But to play the “what if game”, if I could have only one rifle to hunt everything from elk down, I would choose a 30-06.
If I could have only one rifle to hunt everything from coyotes to elephant, it would be a 375H&H.