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Re: General Vietnam '69 support thread[message #77021]

Wed, 02 October 2002 09:36

abradley

Messages:225
Registered:December 2001

Quote:

Originally posted by Uzi:
{snip)
I've also heard that part of the problem was that an ammo manufacturer changed the powder to something different from the original specs, causing even more fouling. Is this true?
Uzi

A Senate 'Armed Service Commotte' found that several Army mandated changes from the USAF AR-15 were causing the problems.

1. Number of groves in the barrel was changed so the rifle would maintain trajectory at below -65 degrees.

2. Army required 'manual chambering' of cartridges be added, while this sounds like common sense it added to the complexity of the mechanism.

3. The Army changed the gunpower used in the cartridge. This made the M-16 fire at a much faster rate in auto. the faster rate stressed the design beyond it's design capabilities. The M-16 was tested and approved with 'IMR' propellant, but the vast majority of propellant in the field was 'Ball' propellant. (I don't know the differance between Ball and IMR propellents?)

The 'Ball' propellent left more residue in the weapon then the 'IMR' leading to jamming.

3. Shell casings overexpended when fired and didn't eject from the chamber for the next round.

It was not unknown for the M-16 to blowup in users faces in the heat of battle.

These is just a few of the problems.

But that was then! During the Gulf War the SAS units used the contemporary M-16s as the preferred weapon due to it's reliability and clean lines (less likely to catch on clothing or other obstructions.)

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[Message index]

		General Vietnam '69 support thread By: Dr.Quack on Fri, 27 September 2002 01:30
		Re: General Vietnam '69 support thread By: Bearpit on Fri, 27 September 2002 21:59
		Re: General Vietnam '69 support thread By: MH on Sat, 28 September 2002 22:02
		Re: General Vietnam '69 support thread By: Uzi on Mon, 30 September 2002 07:53
		Re: General Vietnam '69 support thread By: D A Sharp on Mon, 30 September 2002 08:16
		Re: General Vietnam '69 support thread By: Uzi on Tue, 01 October 2002 04:20
		Re: General Vietnam '69 support thread By: abradley on Wed, 02 October 2002 09:36
		Re: General Vietnam '69 support thread By: blackmac on Wed, 02 October 2002 16:29
		Re: General Vietnam '69 support thread By: Rev on Wed, 02 October 2002 18:42
		Re: General Vietnam '69 support thread By: abradley on Wed, 02 October 2002 18:48
		Re: General Vietnam '69 support thread By: masguy on Thu, 03 October 2002 06:58
		Re: General Vietnam '69 support thread By: Sgt York on Sat, 05 October 2002 00:46
		Re: General Vietnam '69 support thread By: -=ZigZag=- on Mon, 07 October 2002 19:14
		Re: General Vietnam '69 support thread By: Dr.Quack on Mon, 07 October 2002 22:55
		Re: General Vietnam '69 support thread By: -=ZigZag=- on Tue, 08 October 2002 07:59

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