Message from @Crow
Discord ID: 483021908678541312
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:
does a 20'' have a muzzle flame?
Firing .45? I'm gonna say no
actually no, that doesn't actually prove anything
as what you're firing might burn VERY slowly
I can't find a 20" barrel i .45ACP
THAT is a good argument in my favor
Makes sense, why the hell would you do that
since you can't find a 20¨ barrel, do you agree it could be because a 20¨ barrel provides no benefit?
20" is a fairly normal "Rifle Length" Barrel across calibers
no measurable benefit over a X¨long barrel that is shorter
The M16s have 20" barrels, 20" shotgun barrels, ect
I have found 16 to 17" barrels for .45ACP, but then again the military chose 10" barrels for their Thompsons.
which one is optimal
obviously, if you use a 200¨ barrel you will lose out
but I'm
really interested to hear what the breaking point is
assuming
>20" is a fairly normal "Rifle Length" Barrel across calibers
I'd hazard a guess and say 20" is close to optimal since weapon designers have a LOT of practice