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AndyC wrote:I'd sure hate to take a broadhead through my chest-cavity - eish! I have no idea what the volume of the permanent cavity would be, but I'd bet it's spectacular.

AndyC wrote:

johncanfield wrote:I don't want to start a caliber war but I wonder how my EDC Sig P239 in .357 Sig compares to a .45 round in knockdown power? I do own a 1911 and it's one of my favorite shooters, dear wife enjoys it as well

Well, knockdown power doesn't exist but for grins I calculated kinetic energies for these calibers, rounded up to 3 decimal places for easier reading:

230gr .45acp @ 900 fps:

230gr = 0.0149037 kg
900 fps = 274.32 m/sec
Ek = 560.763 Joules


115gr 9mm @ 1200 fps:

115gr = 0.00745187 kg
1200 fps = 365.76 m/sec
Ek = 498.457 Joules


125gr .357 Sig @ 1500 fps:

125gr = 0.00809986 kg
1500 fps = 457.2 m/sec
Ek = 846.564 Joules


Very impressive, huh? Not so fast. Let's take this object:

500gr = 0.0323995 kg
220fps = 67.056 m/sec
Ek = 72.842 Joules

Pretty weak, huh? Well... it's a 500gr broadhead arrow @ 220 fps.

As I've always said - ain't about the energy per se - it's how that energy is used to cause physical damage.

AndyC wrote:Placement and sufficient penetration, yep

crazy2medic wrote:

mojo84 wrote:

crazy2medic wrote:

mojo84 wrote:Was it the inanimate object called a 1911 that saved the day or was it the person using the inanimate tool that saved it?

Both! The synergy of a combat effective pistol and caliber wielded by a man that knows what he's doing!

I think you missed the spirit in which my comment was made. Did you not see the first post and the green smiley face I included?

Every thread doesn't have to lead to a serioys debate or argument.

Wow, was not intended to cause a serious debate or argument!

crazy2medic wrote:

mojo84 wrote:Was it the inanimate object called a 1911 that saved the day or was it the person using the inanimate tool that saved it?

Both! The synergy of a combat effective pistol and caliber wielded by a man that knows what he's doing!