Just spent a week reading through this thread in my spare time. What an education!
It occurs to me that this is like the scientific method. You have a question, you research existing data, you form a hypothesis, you design an experiment to test your hypothesis, the experimental results prove or disprove your hypothesis, you continue on your way better at life because of what you learned.
Now let's go through this as the typical Magnum-Fudd:
Question: What cartridge will allow me to recover the highest percentage of game animals?
Research:
*Bullets kill animals with magic energy. *The more magic energy, the quicker the kill.
*Bigger & faster bullets contain more magic energy than smaller or slower bullets, +20% bonus for "Mag" "RM" "WM" or "Wby" on the head stamp.
*If you make a poor shot, extra magic energy from a magnum will spill out from the bullet and flow toward the vitals.
*Shoulders can stop bullets, consuming at least half of the magic energy of any bullet that makes it through, so you need to choose a round with double the energy and use a controlled expansion bullet if there's any possibility of hitting a shoulder.
Experiment: (note, the Magnum-Fudd has no reason actually to test his hypothesis, because everyone in the cabelas ammo aisle already confirmed.)
*Read hundreds of first hand accounts and necropsy photos from the lowly 223.
*Learn that it is the disruption of heart & lung tissue within the wound channel that kills the animal by depriving the brain of oxygen.
*Learn that a heavy match style bullet in a baby cartridge like 223 creates as large or larger wound channel than a tough controlled expansion bullet from a big magnum.
*Learn that you can likely make more accurate hits with a 223 than a 338 and you can absolutely afford to practice more with 223 than 338.
*Observe that 223 TMK death runs are equal or shorter than magnum death runs.
Conclusion:
*223 allows you to place shots more accurately both because it is easier to shoot and it is cheaper and funner to practice with.
*With bullets such as the 77 TMK, 223 actually gives a GREATER margin of error because the wound channel is larger than a controlled expansion bullet from a magnum.
*Conclude that a small round like 223 may actually result in more animals successfully recovered than a more powerfull cartridge.
*Reject all of the irrefutable photographic evidence and instead continue to cling to your original fuddlore hypothesis.
*Tell stories about how the Viet Cong could use 556 ammo in their AKs because their bore size was larger than ours and 50bmg can kill without contact because of its shockwave instead of practicing shooting from field positions with your $4/round 338wm.
*Continue hunting with big guns you have not practiced with, topped with a scope that doesn't hold zero, wounding and losing more animals than the 223 guys.
I like big cartridges as much as the next guy. Of the last three deer I shot, two were with 375h&h and the other was 300wsm. I'm all for people using whatever cartridge makes them happy.
BUT what people seem to be doing is rejecting actual evidence that's clearly laid out in front of them and continuing to say a big cartridge gives them more "margin for error" or "shorter tracking job" or is "more ethical." These things are demonstrably false.
Back to the scientific method, it's like the experimental results have disproven the hypothesis, but the fudds decide to reject the results and cling to the hypothesis instead.