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Again, I claimed the heavy bullet was better for bison and bear. You claim the lighter bullet is better for deer. That's not an argument, it's agreement. But, any claim that energy by itself can be used to predict killing is flawed. The 405 gr 45 caliber bullet at 1700 fps produces the same energy as a 25 caliber 117 gr bullet at 3160 fps. But you say the 25 caliber bullet is a better killer of deer, and I agree. Therefore, energy does not predict killing power.

Take care, Tom

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Tom, my post was not meant to take issue with yours at all, but rather to agree with you and look at the other side of the same coin so-to-speak. You worked thru various formulas whereas I am commenting on what I've seen in the test media which I think points to the same thing as you say; It is very difficult to use mathematical formulas to predict killing power.

The best example of this I know of is to use the exact same cartridge with different bullets. A 6.5 Swede with 160 grain FMJ's would be a poor choice for general broadside shots on deer. Same cartridge with soft point bullet even of identical shape could be a very good choice. Unless somebody somehow figures out how to create a mathematical formula to incorporate bullet type, bullet construction, game, shot angle and range into the equation, mathematical predictors are going to be severely lacking and sometimes highly misleading.

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