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Improving R10se Super Carbine Css Moderator

Discussion in 'Technical' started by Paul55, Sep 6, 2019.

  1. Paul55

    Paul55 Posting Addict

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    I have an R10SE Super Carbine with the CSS shroud & moderator set up. While the noise produced is certainly quieter than the bare barrel I'm looking to get it super quiet & back yard friendly. I'm aware I could get a shroud from the likes of Huub etc but I like the look & finish of the CSS. Could the moderator be rebuilt? Any suggestions please?
     
  2. Auracana

    Auracana Engaging Member

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    From what I've heard/read the standard r10 ccs vc moderator is pretty quiet.
    I had the shortened version on my ultra and that was awful. In the end I unscrewed the end cap from the moderator and fitted it to a hw which made it much quieter whilst keeping the barrel shroud (shroud purely cosmetic).

    I find the action on a standard bsa ultra mechanically noisy, lots of ping/twang. Much quieter when tuned. I do not have a r10 but they are the same basic action. It might be this mechanical noise you hear and not muzzle blast.

    Best way to find out is to try a hw mod (which is renowned to be one of the best off the peg mods and fairly cheap) and compare.....
     
    Paul55 likes this.
  3. Paul55

    Paul55 Posting Addict

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    OK, I've taken the mod apart & this what I found. The baffle washers have an ID of 8mm as has the exit end cap. The other end cap fits over a bush on the barrel that seals against an O ring. The "felt" doesn't overlap, just snugs up inside the tube, it's 3mm thick. Any suggestions for improvements please.
     

    Attached Files:

  4. Paul55

    Paul55 Posting Addict

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    No suggestions? Am I asking the wrong questions?
     
  5. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    I would suggest caliber specific washers, smaller diameter hair curlers.

    Better wadding will also help, something not to dense, but not to fluffy. 4 way stretch carpet is great for silencers.

    I’m sure a kind forum member would machine you a couple of better suited washers.

    :)
     
    Paul55 likes this.
  6. rkr

    rkr Posting Addict

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    That is actually very close to the HW internals. Both have 3mm felt. HW has 7mm baffle holes while BSA has 8mm, end holes differ slightly HW having 7mm hex hole. The middle chamber in BSA seems to be a tad longer. I dug up some old curlers from a HW silencer and they are 63mm, 30.5mm and 63mm long - how about copying the HW baffles and curler dimensions? It might even be that the curler length adjustment would do the trick?
     
    Paul55 likes this.
  7. Auracana

    Auracana Engaging Member

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    Go to pound shop and get some round furniture pads. There's always one that fits the moderator. Drill centre out to slightly larger than calibre and insert one behind the end cap and try. You'll be surprised at the result. If clipping then enlarge the hole slightly....
     
    Paul55 likes this.
  8. Auracana

    Auracana Engaging Member

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    I meant the round felt furniture feet pads. Or can cut you own from felt, easily bought from ebay....
     
    Paul55 likes this.
  9. Paul55

    Paul55 Posting Addict

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    Thanks guys, some really helpful suggestions there. Off to the lab to begin experimenting :D
     

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