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  #203  
Old 12-07-2018, 03:37 PM
AndrewM AndrewM is offline
 
Join Date: Sep 2008
Location: NW Calgary
Posts: 2,785
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Assuming your bullet doubles in diameter once deformed.
Wound Channel = pi*(r*2)^2*L = pi*D^2*L
pi and L are constant and assume it goes through the animal.
Works out to a 35% larger wound channel for a 308 vs a 6.5. Means more energy transfer to the animal and more damage due to the bullet.