Because we are looking at one-shot-stop percentages.
Without knowing the methodologies used (and it says the data is from multiple sources), it is impossible to determine the statistical significance of that gap.
The 9mm rounds listed in the chart are JHP +P, meaning high-power hollow-point (read:expanding) rounds, while the .45 acp are standard-load rounds. Note that the standard .45 acp JHP functioned statistically identical to the 9mm JHP +P rounds.
In other words, they were comparing the most-expensive 9mm rounds money can buy to run-of-the-mill .45 acp rounds.
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This is why these caliber discussions are rather obsolete. With the introduction of "glaser" ammunition, a tiny .38 glaser can do as much (if not more) tissue damage as a .45 FMJ.
Yes, the glaser round is filled with birdshot that is released upon impact. Each glaser round is like firing a small-bore shotgun into your target at point-blank range.
If you look online, there are many stores that stock the ammo, but it is still rather expensive, as the inventors still maintain their patent rights. Though I can't vouch for their customer service, a quick search turned up these stores:
sorry, i wasn't paying great attention.
stopping power is quite realistic, i'd say. used properly, that is multiple deployments of rounds to the abdomen, the relative stopping power of a .22 and .45 pistol is measurable and very real. such power can make a life or death difference for the person trying to defend himself. it will stop an approach; it will stop or mitigate the opponent's use of a gun or knife.
buck shot from a succession of 12 gauge shots will topple a porta-potty. there is such a thing.
Antagon,
buck shot from a succession of 12 gauge shots will topple a porta-potty. there is such a thing.
Simple Newtonian Physics tells us there isn't. There is so little difference between a .45 and a .22 (other than the size of hole they make) that shot placement is the single most important factor when dealing with solid projectiles. I could go on and on about the relative values for projectiles and their effects but it would bore people to tears. If you do want to do some digging on your own I suggest you head to the local university library and check out the Journal of Trauma. They have numerous very scientific articles about bullets and their effects for the surgeons who have to patch the people up in their hospitals.
Glaser Safety Slugs do exhibit a form of stopping power however. They will transfer 100% of their energy into a target provided the affected area is the torso or head. A strike to the limbs on the other hand will have virtually no effect (other than the destruction of that particular area) but the energy transferred is still limited by Newtonian Physics to what the actual energy level is, the recoil energy minus the loss due to velocity loss.
Antagon,
buck shot from a succession of 12 gauge shots will topple a porta-potty. there is such a thing.
Simple Newtonian Physics tells us there isn't. There is so little difference between a .45 and a .22 (other than the size of hole they make) that shot placement is the single most important factor when dealing with solid projectiles. I could go on and on about the relative values for projectiles and their effects but it would bore people to tears. If you do want to do some digging on your own I suggest you head to the local university library and check out the Journal of Trauma. They have numerous very scientific articles about bullets and their effects for the surgeons who have to patch the people up in their hospitals.
Glaser Safety Slugs do exhibit a form of stopping power however. They will transfer 100% of their energy into a target provided the affected area is the torso or head. A strike to the limbs on the other hand will have virtually no effect (other than the destruction of that particular area) but the energy transferred is still limited by Newtonian Physics to what the actual energy level is, the recoil energy minus the loss due to velocity loss.
i dont believe in fancy gimmick bullets or careful shot placement for hand-guns. since i'm not an assassin, or in a movie, none of that has anything to do with how i might use my pistol in a time of need. at the range, i try to tighten groups of five or so (4 and 3 w/ the 1911) to the massive abdomen area. many times more effective lethality than any one silly magsafe round.
some simple physics is newtons third. have you fired a 12 gauge slug? something like 28grams at 1500fps? equal and opposite reactions. my shotgun is an automatic, so i'm cheating with the recoil, the target is not cheating. it faces (82lbs.*ft)/s momentum from each slug. do you mean to say that that is the same as a 1100fps 8 gram 9mm?
where momentum=m*v, you get (19.36lbs*ft)/s from the 9. no wonder my baby 9 doesn't have a stalk. no wonder some guns dont have as much stopping power as others.
