At the muzzle, they both have about the same energy. Some folks say that a larger caliber, given equal energy, has more "punch" than a smaller caliber..... I ain't goin' there.
The '06 (.30 cal), for the same bullet weight, has a higher sectional density and a better ballistic coefficient.... the farther from the muzzle you get, the greater the advantage the '06 has; it will not shed velocity as fast as a .35 cal of the same weight.
The '06 (.30 cal), for the same bullet weight, has a higher sectional density and a better ballistic coefficient.... the farther from the muzzle you get, the greater the advantage the '06 has; it will not shed velocity as fast as a .35 cal of the same weight.