In literally every way except availability.
Recoil, energy, trajectory, wind drift, etc.
The 7mm-08 Remington out-performs the beloved 308 Winchester in head-to-head ballistic competition. So why isn't it more popular?
www.ronspomeroutdoors.com
I am sorry this article is flawed in the areas of matching velocity but not sectional density/ ballistic co efficient. In the projectiles.
In other words the .308 should have a heavier bullet or more velocity. I am not home next to my reloading books, but careful study of the .308 platform of cartridges will show that the less contractions to the powder column the more velocity achieved per grain of powder and mass of bullet.
Granted if less recoil is what you are seeking with similar sectional density / ballistic co efficient then constricting the powder column will accomplish that. So if one believes less recoil = better accuracy, and more sectional density increased ballistic cor efficient reduces wind drift increases accuracy than by all means a 7/08 beats a .308 in certain scenarios.
But .284 versus .308 is not that much difference in diameter. I would propose a better choice for recoil reduction would be the 6.5 or .257.
To maximize powder column efficiency use less constricting chamber dimensions.
The .308 projectile selection available for the .308 Winchester runs from 90 grains to 200. A .308 130 grain Barnes would be a good choice for young shooters, and as they grow you could increase the ordinance.
I need to look up what the 7 mm bullet selection is.
I think the superior cartridge in 7mm is the 284 Winchester.
Longer action would be the 280 Remington.
The .308 Winchester also Trumps all others for Ammunition availability.