If all else is equal (velocity, SD, penetration), wouldn’t the bullet with the larger cross sectional surface area create a larger hydraulic shock??
Although the larger bullet travels the same distance, it displaces a higher volume of fluid while doing so. Not to mention that it displaces it at a higher rate, because the fluid that it displaces travels from the center of the bullet to the outer circumference in the same amount of time therefore creating a higher pressure directly in front of the ogive. A higher pressure creates a higher amplitude wave which not only creates more damage, but also decays over a longer distance.
It’s not rocket surgery if you stop and think about it.
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