Originally Posted by Taylor1
Except the .243 will generally have more energy at 700 yards than a .25-06 will. There are a much better selection of high BC bullets for long range shots with the .243 than the .25-06. If you figure the 105 berger Berger used in the video against the .257 115 grain Berger both launched at 3000 fps the .243 will beat it at 700 yards. It doesn't do it by a whole lot but if you start comparing the other offerings in .257 caliber to the .243 105 Berger the gap between the two starts to widen by a bit.
Perhaps, but I use that video only to demonstrate the silliness of suggesting that a 25-06 isn't good for anything bigger than a coyote at 400 yards. A comparison at 700 might be different, but 400 is barely even considered a long shot for virtually any center-fire cartridge.
JBM diagrees with your assumption there too... Using load data from Hodgdon to guestimate the muzzle velocity of two bullets, and using 2,900fps for the 105gr Berger .243 and 3,050 for the 115gr Berger .257, the energies are within 50ft/lbs at 700 yards and it's in favor of the 25-06. Even dropping the 25-06 to 2,900 to match the 243, the 25-06 is within about 30 ft/lbs of the 243, but lower.
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