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Falcon5NZ · March 25, 2013, 03:31 AM

In the RNZAF we used BFA's on the IW Steyr (Aussie made variant of the Steyr AUG), allowed a small amount of gas through so you still got a muzzle flash (although not as pronounced as without one, so it was fairly obvious if you fired w/o one. And they don't cycle either-ask me how I know

)
It also had a tube that went into the barrel and I THINK that had the secondary function of stopping a projo going out the barrel full noise. We used blanks manufactured by Ordnance Developments Limited which are the same pattern as the US Brass ones but are green lacquered steel. In the transparent IW Steyr mags or a belt of 5.56 link a brass live round stuck out like a sore thumb

I do recall a trick with a turned down 5.56mm round in the muzzle of an M-16 to act as a BFA without being obvious and ruining the look e.g Memorials, Funerals but I don't remember exact details so I won't pretend to be an expert.

Now that's for gas operated weapons, which require gas "back pressure" to function. Recoil and Inertia operated may be different. I suspect you would have fun getting a Browning Auto-5 or Benelli M-2 to function correctly with blanks.

And some blanks do have a bullet, albeit a wooden one. Like the Smurf Killer

The BFA causes the projo to disintegrate as it leaves the muzzle.

You also have to realise that there are different types of blanks which can basically be classed as noise and launching. Noise blanks are for battle simulations while launching is for well, launching something (rifle grenades, lines etc). I've even heard that using a noise blank (accidently) to launch could result in a catastrophic failure due to the pressure buildup of a completely obstructed barrel.

They have different powders for the different rounds
The CARTRIDGE, 5.56MM, BALL, M855 has 26.1 grains of WC 844
The CARTRIDGE, 5.56MM, BLANK, M200 (noise) has 7 grains of HPC 13
The CARTRIDGE, 5.56MM, BLANK, M755 (launching cartridge specially designed for the M234 Riot Control Launcher) has 12 grains of Hi Skor 700-X (which if I recall correctly is a shotgun/pistol powder)

I may have veered off topic a bit but hope you can understand what I mean and you learnt something.

March 25, 2013, 03:31 AM	#4
Falcon5NZ Senior Member Join Date: May 19, 2008 Location: Somewhere North of the Roaring 40's...Just Posts: 275	In the RNZAF we used BFA's on the IW Steyr (Aussie made variant of the Steyr AUG), allowed a small amount of gas through so you still got a muzzle flash (although not as pronounced as without one, so it was fairly obvious if you fired w/o one. And they don't cycle either-ask me how I know ) It also had a tube that went into the barrel and I THINK that had the secondary function of stopping a projo going out the barrel full noise. We used blanks manufactured by Ordnance Developments Limited which are the same pattern as the US Brass ones but are green lacquered steel. In the transparent IW Steyr mags or a belt of 5.56 link a brass live round stuck out like a sore thumb I do recall a trick with a turned down 5.56mm round in the muzzle of an M-16 to act as a BFA without being obvious and ruining the look e.g Memorials, Funerals but I don't remember exact details so I won't pretend to be an expert. Now that's for gas operated weapons, which require gas "back pressure" to function. Recoil and Inertia operated may be different. I suspect you would have fun getting a Browning Auto-5 or Benelli M-2 to function correctly with blanks. And some blanks do have a bullet, albeit a wooden one. Like the Smurf Killer The BFA causes the projo to disintegrate as it leaves the muzzle. You also have to realise that there are different types of blanks which can basically be classed as noise and launching. Noise blanks are for battle simulations while launching is for well, launching something (rifle grenades, lines etc). I've even heard that using a noise blank (accidently) to launch could result in a catastrophic failure due to the pressure buildup of a completely obstructed barrel. They have different powders for the different rounds The CARTRIDGE, 5.56MM, BALL, M855 has 26.1 grains of WC 844 The CARTRIDGE, 5.56MM, BLANK, M200 (noise) has 7 grains of HPC 13 The CARTRIDGE, 5.56MM, BLANK, M755 (launching cartridge specially designed for the M234 Riot Control Launcher) has 12 grains of Hi Skor 700-X (which if I recall correctly is a shotgun/pistol powder) I may have veered off topic a bit but hope you can understand what I mean and you learnt something. __________________ It is New Zealand's role to send out its bright young men and women to help run the rest of the world. And they go, not hating the country of their birth, but loving it. From this loving base they make their mark on the world. Pro-1080 Poison and proud of it!!