Discussion in 'On Topic' started by GPK, Jan 4, 2009.
Had me wondering, does .38 special > .380? Or is it .380 > .38sp?
.38 special is a far better defensive round than .380
.38 special is no joke.
Speer Gold Dot .38spl +p ftw.
In terms of kinetic energy, 9mm> .38SPL > .380Auto (generally speaking).
they must not have had sufficient equipment to measure the kinetic energy of 10mm...
Soybomb would like to take a moment to remind everyone that kinetic energy comparison are pretty much worthless. If you want to know how a round performs, see how big a hole it can leave in someone.
no 44 mag no care
Also, it would be important to know what barrel length those muzzle energy numbers are being made out of. The .357mag is a bit understated in that chart, as common loadings are almost making 600 ft-lbs in some pistols.
Actually they tested 10mm last and it wound up destroying the equipment, plus the test bench and most of the backstop. A hippie across the street also had a heart attack and nearly died. Babies cried. The ghosts of John Wayne and Charlton Heston smiled and
There seems to be a correlation between kinetic energy and wounding potential so long as one does not stray too far into the extremes of bullet mass or velocity at the expense of the other.
Lets look at a couple cases:
357 sig is near the top on that chart yet usually creates a smaller wound than 9mm
.38 special shows about equal to .380 yet can create a far larger wound in .380 because of the sharp cutting edge of a wadcutter bullet and the heavier bullet
it makes it appear as though there is a reasonable difference between the wounding capabilities of the service calibers
it doesn't examine performance issues of fmj vs. jhp and other bullet designs.
it doesn't examine the role of fragmentation in wounding but the chart is showing off 5.56
and as you pointed out extremes like light frangible ammunition ruin the comparison too
I just don't see any reason to measure in some arbitrary unit that may or may not be accurate for what you're wanting to know when you already can measure what you want to know directly. If you want to know how big a wound a caliber can make, look it up, don't try to figure it out by measuring the ratio of unicorns to leprechauns