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Post subject: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Thu Jan 30, 2014 10:19 pm
...slug-like KE w/ flatter trajectory, and consider they say this large projectile is designed to upset (yaw) in the target!


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Post subject: Re: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Thu Jan 30, 2014 10:45 pm
@1:35:
Quote:
we have a proprietary twist rate in the barrel

Um, how in the world can a twist rate be proprietary?

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Post subject: Re: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Fri Jan 31, 2014 6:08 am
JustaShooter wrote:
@1:35:
Quote:
we have a proprietary twist rate in the barrel

Um, how in the world can a twist rate be proprietary?


It may be that they have a variable twist rate barrel.
That is, the twist rate at the chamber is nearly straight and increases smoothly down the barrel.
The theory being that this allows the bullet to accelerate in it's rotational motion as it accelerates in forward motion.
I'm not sure I understand or believe the math or the theory.

I've worked on packaging machinery that used varying pitch lead screws to smoothly accelerate open topped containers (cans) to minimize spillage. It's mesmerizing to watch.

AlanM
There are no dangerous weapons; there are only dangerous men. - RAH
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Post subject: Re: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Fri Jan 31, 2014 8:39 am
AlanM wrote:
JustaShooter wrote:
@1:35:
Quote:
we have a proprietary twist rate in the barrel

Um, how in the world can a twist rate be proprietary?


It may be that they have a variable twist rate barrel.
That is, the twist rate at the chamber is nearly straight and increases smoothly down the barrel.
The theory being that this allows the bullet to accelerate in it's rotational motion as it accelerates in forward motion.
I'm not sure I understand or believe the math or the theory.

Yeah, I thought about variable twist barrels, but even that wouldn't be "proprietary", at least not the way I understand the word (something that is used, produced, or marketed under exclusive legal right of the inventor or maker).
I think he just wanted it to sound important. 8)

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Post subject: Re: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Sun Feb 09, 2014 4:50 pm
Well Saami I think DOES suggest standard twist rates ?? And a faster or slower than "normal" twist rate could be taken as "proprietary".

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Post subject: Re: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Sun Aug 03, 2014 9:52 pm
Seems everyone needs a proprietary caliber these days...

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Post subject: Re: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Mon Aug 04, 2014 9:53 am
Just to nit pick, but when a bullet accelerates down a constant twist barrel the rotational velocity accelerates at exactly the same rate as the forward velocity.
That is, the bullet starts out with zero forward velocity and zero rotational velocity and both reach maximum (hopefully) as the bullet leaves barrel. The rotational velocity being directly related to the forward velocity times the twist rate of the barrel.
Unless, of course, the bullet doesn't stay fully engaged with the barrel's rifling.

A variable twist barrel actually causes the rotational acceleration to increase as the bullet travels down the barrel. This is called jerk and IMHO may cause more barrel leading than normal. I could be wrong, of course. It wouldn't be the first time.

Some math terms:
The difference between two locations of an object is called distance. D
Change in distance vs. time is velocity. dD/dT = V
Change in velocity vs. time is acceleration. dV/dT = A
Change in acceleration vs. time is jerk. dA/dT = J

AlanM
There are no dangerous weapons; there are only dangerous men. - RAH
Four boxes to be used in defense of liberty: soap, ballot, jury, ammo - use in that order.
If you aren't part of the solution, then you obviously weren't properly dissolved.
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Post subject: Re: Hushpuppy 416, ...New Ultimate Home Defense Weapon?
Post Posted: Wed Sep 24, 2014 10:46 am
Can't find any tests or discussions out there about it, can anyone point me to where there's data on this round through an intermediate barrier, like drywall? I would love to use my short little 300BO with Barnes black tip for home defense but it's energy through drywall is the reason I haven't. 55gr TSX out of my SBR, or many other open tip options, are far safer due to the smaller cross section and speed at which the round travels.

The 416s effect on soft targets is obviously important, but since we're taking about its use as a home defense round, I think considering its potential energy and effects through drywall are just as crucial...
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