mass x speed x speed

and that's energy, not penetration

= force

= "penetration"

No.

Those are parts of the Terminal Ballistic Effect equations not the hole Cwow

@Crow there's more to going through kevlar and wall respectively than just the energy

otherwise a strong punch would go through kevlar

Also included are things like Bullet design, diameter, and media being shot at

^

a strong punch DOES go through kevlar, which is why blunt trauma is a thing

but it doesn't penetrate

there isn't a hole in the kevlar

Jacketed Hallow Points do better against flesh than kevlar, but can weigh the same as a full metal jacket that does do better against the kevlar than the flesh

>and you're plain wrong, barrier penetration improves with mass, not speed
This is what I'm arguing against

fundamentally

barrier penetration improves with mass AND speed, as well as a hundred smaller factors like shape (not really relevant to this argument)

toss a baseball at a wall, now THROW the baseball at the wall, same mass, does the extra speed help it go deeper??

kek

a baseball thrown does not have enough energy to penetrate a wall generally speaking

Strong throw that goes through a wall... Sure it will, but a heavy baseball going fast is still going through more layers than a light baseball going REALLY fast

a drop a cannon ball from 1y, now SHOOT the cannon ball at a wall with the same mass

There was a test they did where they took drywall sheets lined up behind one another and shot it with various calibers

mass x speed x speed

more energy, less inertia my dude, and inertia is what you need for the wall

speed (velocity) is a lot more important than mass

which is why a few gram heavy bullet can REKK your body armor and kill you

The other part of it Proyne is that I have in more modern handgun loads (JHPs) in particular they are using fast burn powders these days so in a long barrel (over 14") you are losing muzzle Velocity.

as the long as the bullet is going SANIC FAST supersonic speeds

>you are losing muzzle Velocity.

I call bullshit

you might get no measurable improvement in muzzle velocity, but I find it VERY hard to believe you would lose muzzle velocity

.44MAG lever gun chronos faster as SBR than a Carbine

for that to happen, the pressure from the atmosphere outside would have to be higher than that inside barrel

there's friction from the barrel, you know

Now if you were to up that to a 20" plus barrel it would really lose the MV

14" to 16.5" will cause about 10 to 20% depending on the powder,

yeah but that requires an insane scenario where the barrel friction is equal to or greater than the pressure difference between a figurative gunpowder explosion and NTP

you have no idea how high friction gets at near-sonic speeds gets do you

But if you go to a slow burn powder it will result in the traditional increased MV in up to 18" barrel

a simple way to visualize this: