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Libyan War - Second Mothership | 308 comments (308 topical, editorial, 0 hidden)
Re: Libyan War - Second Mothership (none / 1)
As most of the rest of the comments are mine ...

I only monger wars on a retail basis.  When a government immediately responds to protesters by shooting them with 12.7mm anti-aircraft rounds:

[not me in the picture]

and they rise against a brutal regime to protect their basic human rights, that's a war I'm willing to monger.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre

by ATinNM on Mon Mar 21st, 2011 at 07:21:38 PM EST
[ Parent ]
Re: Libyan War - Second Mothership (none / 0)
Where in that round is there a 12.7mm length?

So, in what may be my last act of "advising", I'll advise you to cut the jargon. -- My old PhD advisor, to me, 26/2/11
by Carrie (migeru at eurotrib dot com) on Mon Mar 21st, 2011 at 07:23:12 PM EST
[ Parent ]
Re: Libyan War - Second Mothership (none / 0)
beat me to it, id say its more a 23 mm round

Any idiot can face a crisis - it's day to day living that wears you out.
by ceebs (ceebs (at) eurotrib (dot) com) on Mon Mar 21st, 2011 at 07:25:16 PM EST
[ Parent ]
Right S/B 23mm (none / 0)
Don't know why I typed 12.7mm.  The Shilka's 2A7 autocannon use 23mm rounds.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre
by ATinNM on Mon Mar 21st, 2011 at 07:30:40 PM EST
[ Parent ]
Re: Right S/B 23mm (none / 0)
(you $%#$%! war-mongers)

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre
by ATinNM on Mon Mar 21st, 2011 at 07:32:08 PM EST
[ Parent ]
Re: Right S/B 23mm (none / 1)
reading , its belts of three rounds high explosive incendiary, followed by one of armour piercing as standard. that has got to make an exceptionaly terrible mess of any crowds, treating anything they want to hide behind as no more inconvenient than clouds.

Any idiot can face a crisis - it's day to day living that wears you out.
by ceebs (ceebs (at) eurotrib (dot) com) on Mon Mar 21st, 2011 at 07:40:11 PM EST
[ Parent ]
Re: Right S/B 23mm (none / 0)
What's the 23mm? The blue? the silver?

So, in what may be my last act of "advising", I'll advise you to cut the jargon. -- My old PhD advisor, to me, 26/2/11
by Carrie (migeru at eurotrib dot com) on Tue Mar 22nd, 2011 at 03:17:42 AM EST
[ Parent ]
Re: Right S/B 23mm (none / 0)
the  width of the bullet, guns are described  by a measure of the diameter of the hole (the bore) and the length. so in the modern system  you'd see a gun described as 75 L50 it would be 75mm across the hole, and the length of the barrel is 50 multiples of the width, or 3.75 metres. older guns are described as being a 24 lb gun, this is the weight of the theoretical sphere of lead that would fit inside the barrel,

Any idiot can face a crisis - it's day to day living that wears you out.
by ceebs (ceebs (at) eurotrib (dot) com) on Tue Mar 22nd, 2011 at 06:17:57 AM EST
[ Parent ]
Re: Right S/B 23mm (none / 0)
Somehow that round looked wider than 23mm to me - I guess I have faulty intuitions about the lengths of fingers.

So, in what may be my last act of "advising", I'll advise you to cut the jargon. -- My old PhD advisor, to me, 26/2/11
by Carrie (migeru at eurotrib dot com) on Tue Mar 22nd, 2011 at 06:54:47 AM EST
[ Parent ]
Re: Right S/B 23mm (none / 0)
The round is wider than the bore at the base. The lower part of the round contains propellant encased in a casing that is ejected from the chamber after the weapon is discharged, not fired out the barrel. I don't know precisely where the casing ends and the bit that goes out the barrel begins, but the blue part would not be a bad guess.

- Jake

Friends come and go. Enemies accumulate.

by JakeS (JangoSierra 'at' gmail 'dot' com) on Tue Mar 22nd, 2011 at 07:16:19 AM EST
[ Parent ]
Re: Right S/B 23mm (none / 1)
The casing is the brass part.  The bullet is crimped into the casing at the neck, the narrow bit at the top of the casing.  The bullet is held in the casing by mechanical pressure.  The bullet itself is slightly tapered at the base.  

When fired the propellant burns, releasing gases creating a sharp pressure inside the casing flowing around the bullet's taper, freeing the bullet from the casing, and away she goes.

(I know this because I'm a war-monger.)

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre

by ATinNM on Tue Mar 22nd, 2011 at 01:16:05 PM EST
[ Parent ]
Re: Right S/B 23mm (4.00 / 2)
(From another war monger) There are also the rifling inside the barrel. If you just removed the projectile from the casing and put it in the barrel of the gun it would not just drop through. The widest part of the projectile is compressed by the rifling, causing the projectile to engage and to make a partial revolution on its way down the barrel, thus imparting thes pin which stabilizes the projectile in flight. My guess is that the diameter of the projectile is set so that there is no air gap between it and the barrel during its journey. That would avoid wasting part of the charge.

"It is not necessary to have hope in order to persevere."
by ARGeezer (ARGeezer a in a circle eurotrib daught com) on Tue Mar 22nd, 2011 at 02:36:55 PM EST
[ Parent ]
Re: Right S/B 23mm (none / 0)
I thought that on first inspection, but looking at the length of the entire shell, it does appear to be about the right size. Looking through the equipment the Libyan army has, there's a gap between those and large guns. due to arms embargos the Libyans didnt upgrade their IFVs from BMP1 to BMP2 which would have left piles of 30mm shells about.

Any idiot can face a crisis - it's day to day living that wears you out.
by ceebs (ceebs (at) eurotrib (dot) com) on Tue Mar 22nd, 2011 at 07:22:47 AM EST
[ Parent ]
Re: Libyan War - Second Mothership (none / 1)
You need to put that thing down.  You'll shoot your eye out kid. ;)

Be nice to America. Or we'll bring democracy to your country.
by Drew J Jones (pedobear@pennstatefootball.com) on Mon Mar 21st, 2011 at 07:44:11 PM EST
[ Parent ]

Libyan War - Second Mothership | 308 comments (308 topical, 0 editorial, 0 hidden)
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