Baffles from planchets

[ranb]

I was cleaning the garage and came across some sample planchets. They are stainless steel cups (2ml capacity) about 1 inch wide, .25 inches deep and about .010" thick. You can see some here; http://www.drct.com/dss/accessories/planchets.html

I cut a small die set out of scrap aluminum to see if I could form a 60 degree baffle without tearing the steel. I was partially successful.



This one will never be a silencer part; the cone is too shallow. I'll have to experiment with better a lube and die with a rounder point before I can actually make baffles. I also need to find tubing that has an inside diameter of 1 inch. I figure that I could stack up 16 of these and tack them together to ensure alignment. I'd use a blast baffle made from barstock about .030" thick and threaded or welded endcaps.

Ranb

[dj_fatstyles]

still better than red jacket

[curtistactical]

still better than red jacket

[HK91]

The formed planchet kind of looks similar to the baffle from a Parker Hale 22 sound moderator I remember using when I was in England 20 years ago. At that time a person could walk in to a gun shop in England, pay 17 Pounds and walk out with the sound moderator in hand. It was considered impolite to shoot without a suppressor in the area I lived at the time.

HK91

[Historian]

still better than red jacket

Well said!
A real game changer, to COIN* a phrase.






* << http://coins.about.com/od/coinsglossary ... t_coin.htm >>

[Historian]

The formed planchet kind of looks similar to the baffle from a Parker Hale 22 sound moderator I remember using when I was in England 20 years ago. At that time a person could walk in to a gun shop in England, pay 17 Pounds and walk out with the sound moderator in hand. It was considered impolite to shoot without a suppressor in the area I lived at the time.

HK91

Saw similar set up in the 1960's except for one design with no
baffles, just an inverted snorkel on the front end cap going back 2/3 of the way.

Seems no one else since then has ever seen that variant of the PH MM1 model.

<< http://www.youtube.com/watch?v=hjwI9Oz0 ... 0916DA0783 >>

Twilight Zone imagined visit to Parker Hale 'back room' ??

[gunny50]

Saw similar set up in the 1960's except for one design with no
baffles, just an inverted snorkel on the front end cap going back 2/3 of the way.
Seems no one else since then has ever seen that variant of the PH MM1 model.

Something like this.


or like


Gunny

[Historian]

Saw similar set up in the 1960's except for one design with no
baffles, just an inverted snorkel on the front end cap going back 2/3 of the way.
Seems no one else since then has ever seen that variant of the PH MM1 model.

Something like this.


or like


Gunny

The Plenum Insert shape with a thin tube used as the front end cap.
Please view the YouTube exposition of the PH MM1 .22

<< http://www.youtube.com/watch?v=aGrGCnStmrk >>

Imagine no baffles, just the Plenum installed.

Perhaps I was shown a prototype of an MM1 that was never
commercially made. It did have the "Parker Hale MM1" stamped
at the base as the classic 1930's cans they were selling.

Was the thinking behind such a minimalist
design based on the idea of capturing all the discharge in the
whole volume and release it slowly as the gas would be forced out under control.
Thus would it for a .22 present an optimum Db output?

The PH can, if memory serves over half a century, was around 1" or less in diameter by about 6.5 (?) in length,
making the whole can have an expansion chamber of ~5 cubic inches,
dramatically and rapidly reducing the pressure, and then spooning out the result.

The main tube was machined from a single aluminum
bar stock so only one end cap necessary. The thread was 1/2" x 20 TPI.
PH had their nicely crinkled black textured coating.

" Our suppressor was used by our chaps during the War for their specialized
missions on .22's we modified, [ Something about a group called] "Phantom Signals Unit'
behind-the-lines info gatherers."

Over the intervening years I have been vexed that I have not seen any mention in any
sources of even the existence of such a design nor the possible effectiveness of 'no-baffle'
snorkel can. Was the experience possibly a 'Twilight Zone' mental creation?

It would be interesting if there is anyone authorized to experiment to machine such a tube and Plenum
and test the actual Db attainable.

For those interested in WWII history, David Niven the actor returned to England at the
beginning of the war and became part of the 'Phantom Signals Unit'. *


* << http://waryears.wordpress.com/david-niven/ >>
<< http://www.telegraph.co.uk/news/uknews/ ... f-war.html >>
<< http://www.breitbart.com/Big-Hollywood/ ... avid-niven >>