All things being equal the 7x64 might have around 5cm less drop (with 154gr) at 350m (65cm v 70cm), being a marginally thinner projectile (with slightly higher BC & SD).

However, I would think .308 is "even easier" to load for; it has the option of lee collet dies which the 7x64 does not. The .308's short action has a potential, slight benefit in weight, but alas; neither kills deader than the other.