ORIGINAL: BrutalAttack
No.
Something you're doing isn't adding up.
I just compared 180 gr. 30-06 and 250 gr. .338-06 and the difference was only 283 ft/lbs.
I'm still not buying it.
How do .338-06 180's and 225's compare? The big factor is velocity, as that number is squared. Size of the bullet makes less difference. As you pointed out, Mass gets divided by 2.