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Thread: Eccentric over barrel rifle suppressors - anyone know?

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    Member Cordite's Avatar
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    Eccentric over barrel rifle suppressors - anyone know?

    Just picking brains... does anyone know of a manufacturer of an eccentric, ideally over-barrel suppressors for .30 rifles such as .308 or .303?

    I know Hiram Maxim made one at the dawn of time for his machine guns, the steel spiral baffles of which were later copied in the de Lisle .45, but uncle Google does not help further ("Eccentric suppressor" search just gets you up Osprey, a manufacturer that makes eccentric pistol suppressors).

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  2. #2
    Member Ryan_Songhurst's Avatar
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    That Rev Rog bloke seems pretty eccentric
    #27GANG

  3. #3
    Ex stick thrower madjon_'s Avatar
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    Quote Originally Posted by Ryan_Songhurst View Post
    That Rev Rog bloke seems pretty eccentric
    I think he's dead?
    Real guns start with the number 3 or bigger and make two holes, one in and one out." -

  4. #4
    MIA somewhere in Nam 300CALMAN's Avatar
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    Quote Originally Posted by madjon_ View Post
    I think he's dead?
    Yes RIP Roger Spackman

    Roger SPACKMAN Death Notice - Auckland, Auckland | The New Zealand Herald

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    MIA somewhere in Nam 300CALMAN's Avatar
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    Quote Originally Posted by Cordite View Post
    Just picking brains... does anyone know of a manufacturer of an eccentric, ideally over-barrel suppressors for .30 rifles such as .308 or .303?

    I know Hiram Maxim made one at the dawn of time for his machine guns, the steel spiral baffles of which were later copied in the de Lisle .45, but uncle Google does not help further ("Eccentric suppressor" search just gets you up Osprey, a manufacturer that makes eccentric pistol suppressors).
    No I have only seen the Salvo 12 for shotguns. It's more complicated to make than a round one.

  6. #6
    Member Cordite's Avatar
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    Quote Originally Posted by 300CALMAN View Post
    No I have only seen the Salvo 12 for shotguns. It's more complicated to make than a round one.
    Yes, the Maxim ones were THE shape to use back then as most people then used iron sights.

    I'm thinking of a .303 de Lisle setup myself and I prefer buying a can to attempting to make one myself - except of course you can make it quite large for a de Lisle look so it would be quite forgiving.
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    I have made a few eccentric screw-on suppressors. They are a pain in the arse to make in comparison with concentric units, and the only major advantage they offer is the ability to use iron sights. They do give a slightly better suppression performance because of the inconsistent gas flow. The best eccentric design I have made in terms of performance and suppression is of rectangular cross-section, giving a greater internal volume than a cylindrical unit of similar dimensions.
    Cordite likes this.

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    Member Max Headroom's Avatar
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    Quote Originally Posted by 300CALMAN View Post
    He looks like an interesting character, what was the story with him?

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    Quote Originally Posted by Max Headroom View Post
    He looks like an interesting character, what was the story with him?
    he made suppressors that were pretty out there

  10. #10
    Ex stick thrower madjon_'s Avatar
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    Quote Originally Posted by Max Headroom View Post
    He looks like an interesting character, what was the story with him?
    He liked to drill holes
    gadgetman and rossi.45 like this.
    Real guns start with the number 3 or bigger and make two holes, one in and one out." -

  11. #11
    Semper excretia Ryan's Avatar
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    Quote Originally Posted by Bill999 View Post
    he made suppressors that were pretty out there
    And, in my experience at least, completely ineffective.
    svt40 likes this.
    "I would rather suffer under imperfect freedom, than languish under perfect control".

    - Manservant

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    He made and sold, or at least attempted to sell some pretty over the top tacticool gun designs. Think flames and sparkly bits. Probably would have been an interesting bloke to have a beer with.

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    Rev Rog had different ideas in designing affective suppressors, never got around to the barrel protector sleeve. No one else in the industry has matched his suppressor colour schemes. Even told me he threaded barrels with a die nut when they wouldn't fit in the lathe. A very nice guy, miss the odd chat I had with him.

  14. #14
    Semper excretia Ryan's Avatar
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    He certainly was quite an amiable man, very easy to deal with.
    "I would rather suffer under imperfect freedom, than languish under perfect control".

    - Manservant

  15. #15
    Member Cordite's Avatar
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    Quote Originally Posted by gundoc View Post
    I have made a few eccentric screw-on suppressors. They are a pain in the arse to make in comparison with concentric units, and the only major advantage they offer is the ability to use iron sights. They do give a slightly better suppression performance because of the inconsistent gas flow. The best eccentric design I have made in terms of performance and suppression is of rectangular cross-section, giving a greater internal volume than a cylindrical unit of similar dimensions.
    I see, so blast gets channeled left an right, down, round, then towards the centre where the two opposite waves meet... equal and opposite forces cancelling each other out, turning velocity into heat. I wonder how an eccentric suppressor with no baffles would perform - just a 2" sleeve, and a long internal muzzle brake jetting left and right.

    I know, it's late and I can't sleep...
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