cp1969 -
I understand your "wound channel" comment, (even was going to put something about that in my original post - didn't want to start another "discussion" on ballistic gelatin examples though since it is almost as controversial as Gear vs. HST /w3tcompact/icons/laugh.gif). That being said, if you re-read my post I think you'll see that we're on the same page essentially. (That's always the danger with over simplification in these areas since there are so many nuances and "factors" that apply.)
I said, <font color=red>Basically the higher the projectile/target energy transfer, the more tissue damage occurs, which increases the probability of affecting a vital organ in "bucky." </font color=red>
Ok, if all the energy is expended in the outermost area of the animal (skin and outside layers of muscle tissue) and none of the vitals are affected, 1) yes, you have very effective energy transfer, but 2) the animal does not go down. Unfortunately I was assuming "appropriate" penetration in my example but didn't explicitly state it. (Penetration is good - but only to a point as over penetration results in "wasted energy" and doesn't enhance the size of the wound channel)
Bullet energy/target transfer, assuming appropriate penetration, directly impacts the size of the wound channel, and therefore the probability of affecting a vital organ. Penetration is important, but so is energy transfer as they go hand-in-hand in creating "more tissue damage" (i.e. wound channel). So, again, I think we're on the same page on this one.
<font color=blue>That's about all you can ask of a pistol bullet is to penetrate; caliber supplies the diameter of the wound channel</font color=blue>
Well, kindof. The "caliber" of the bullet, during & after expansion, is what matters. A .45 cal bullet that stays .45 cal through the target is not as desirable as a .44 cal bullet that, say, expands 20% on impact. So, I "do ask more" from the bullets I shoot I suppose. Who hunts with FMJ? (ok, if you are going after pelts, but that's an exception) SP, HP, SWC, even WC are all generally preferable, depending on the cartridge being used (yes, yes, another "simplification" - /w3tcompact/icons/wink.gif)
The entire function of expansion 1) reduces penetration, 2) increases energy transfer, and 3) increases tissue destruction (or wound channel per se). You have to have enough energy to achieve "appropriate" penetration, but if you have ineffective energy transfer, you're wound channel is going to be more like an "ice pick" wound - potentially lethal, but hardly appropriate for most hunting. Basically I'm saying "balance" is the key. Yes, you must have both energy transfer and penetration to achieve the desired results.
<font color=blue>A 'sharp stick', could be far more effective than ANY pistol cartridge if you jam the base end in the ground and let the charging critter impale himself upon it.</font color=blue>
I'll agree with the "could" part. I think I'll stick with the gun though.../w3tcompact/icons/smile.gif