I have no quarrel with the heaviest bullet advocates who state that 160's made the 6.5 reputation.........but would point out that such extreme sectional density is not actually necessary for good penetration. Even 120s in the 6.5 equal 165 grain 30 calibers the 140s are equivalent to 190 grain 30s in sectional density. I'll stand my statement that I feel no need for heavier than 140s fro elk......but use what you wish.