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Quietest Moderator?

Quietest moderator for an AirMaks Katran Pro Compact or PCP in general?

  • DonnyFL RYU

    Votes: 0 0.0%

  • DonnyFL Sumo

    Votes: 0 0.0%

  • Weihrauch Standard

    Votes: 31 36.5%

  • Weihrauch XLK

    Votes: 24 28.2%

  • Huggett Astille

    Votes: 1 1.2%

  • Air Arms Q-Tec

    Votes: 2 2.4%

  • DonnyFL KOI

    Votes: 0 0.0%

  • Other (Please post name)

    Votes: 27 31.8%
  • Total voters
    85
Another vote for @mattw975 custom moderators, he does really good work and will make them to your specs. The one on my daystate mk3 is incredibly quiet.

Of the off the shelf variety that I have or do still own;

HW standard mod - super quiet but not the sexiest thing on the block.

Swift modular - quieter than the HW on a variety of rifles and you can always take sections out to trade of between length and sound volume. Nicely made, but you need to grease the threads.

DonnFL Tatsu - not the quietest but very well made and pretty damn good looking, currently has a permanent home on my AlphaWolf.

DonnyFL Fatboy2 - once again not the quietest, very well made but bloody sexy looking.
DonnyFL Fatboy2 with the air stripper attachment, rings like a bell (despite not clipping) but boy does it look good, fine for on a range wouldn't want to go hunting with it on.

I like the DonnyFL moderators, they are amongst the very best in terms of manufacturing quality, up there with the very best for visual style just not the absolute quietest.

If I need something to be very quiet I either reach for the mk3 with mattw's moderator on it or stick the swift modular on whatever I'm shooting. Looks wise I prefer the DonnyFL's.
 
@mattw975 all the way for me.
I’ve had both .177 and .20 mods made by Matt for my Regal.
I’m yet to shoot next to another gun that’s quieter.
The .20 will be at Throckmorton, so I’ll see how it fairs against those that are there. But I’ve shot next to a lot of the big names (even a certain deleted members) so we shall see.
I still can’t believe how little he charges, for such high quality pieces.
 
Mark Palmer said:
Hogan Decimeater, in several magazine back to backs it comes out on top, superbly made , machined aluminium internals (no plastic hair curlers) and proper acoustic felt, and only around £60,
Click to expand...
Nothing wrong with haircurlers, having studied acoustics at Uni there are a lot of factors that aid effectiveness.

Expansion chamber sizes & spacing is very important & materials are another. After 2 years of making many prototypes, I ended up with Delrin as proper engineering grade polymers are far better at sound deadening than metals, they are tough & they take a scratch better than blued or anodised metals.

Over the years I have made various units out of steel & aluminium & you get a slight "ring" to them. Its barely audible, but I have noticed dogs & the odd bunny have reacted to what otherwise has been a very quiet silencer. I don't get that with a unit machined out of solid Delrin bar. Its a vey deadened noise.

Some say the threads don't stand up as well to heavy use as Delrin is not as hard as metal. True, but it depends how you treat them. I have a 10 yo Delrin MWSS200 with a female thread that goes on a couple of my rifles regularly. I am careful when I screw them on & off, but I am the same with metal units too. Threads can be fragile regardless of the material, if care isn't taken with them.
 
I've not bought one for years as my Taipan came fitted with a massive, reflex moderator as standard.

Last one I bought was a Daystate 0db. That was pretty good. I made a sound like hot, melted butter falling off a toasted muffin and landing on an open page of poetry in summer......

Or have a been watching Withnail and I?
 
ChrisHobbs said:
@mattw975 all the way for me.
I’ve had both .177 and .20 mods made by Matt for my Regal.
I’m yet to shoot next to another gun that’s quieter.
The .20 will be at Throckmorton, so I’ll see how it fairs against those that are there. But I’ve shot next to a lot of the big names (even a certain deleted members) so we shall see.
I still can’t believe how little he charges, for such high quality pieces.
Click to expand...
Thanks for the kind words Chris, it's never been about the money. Airgunning has been a passion of mine for 50 years now & the silencers are just a hobby & a way of giving something back to a sport & a community that has personally given me a lot of friends & great memories.

I actually started selling my old prototypes in around 2008 on the old forum when redundancy loomed & I thought I may need the cash. Luckily I wasn't made redundant & 18 years later I'm still making the now standard & the custom units people ask for :)

I am amazed how much silencers have gone up since Covid, I only pass costs rises on when I really have to.....the MWSS200 has gone up 11 pounds in 14 years of production !!
 
mattw975 said:
I don't get that with a unit machined out of solid Delrin bar. Its a vey deadened noise.
Some say the threads don't stand up as well to heavy use as Delrin is not as hard as metal. True, but it depends how you treat them. I have a 10 yo Delrin MWSS200 with a female thread that goes on a couple of my rifles regularly.
Click to expand...

Delrin is a solid choice material, and perfect for many applications in the firearms industry.
I purchased this Soundbiter mod in 97/98 when i got my first LR, and it has been on & off multiple rifes ever since, and the threads are still as tight as day 1.
Provided you are careful not to cross the threads in use, and use a bit of grease occasionally, they will last forever.
Considering it's size, weight & very basic construction, this unit is an extremely effective mod for rimfire.

Screenshot_20260726_073232_Chrome.webp
 
mattw975 said:
Nothing wrong with haircurlers, having studied acoustics at Uni there are a lot of factors that aid effectiveness.

Expansion chamber sizes & spacing is very important & materials are another. After 2 years of making many prototypes, I ended up with Delrin as proper engineering grade polymers are far better at sound deadening than metals, they are tough & they take a scratch better than blued or anodised metals.

Over the years I have made various units out of steel & aluminium & you get a slight "ring" to them. Its barely audible, but I have noticed dogs & the odd bunny have reacted to what otherwise has been a very quiet silencer. I don't get that with a unit machined out of solid Delrin bar. Its a vey deadened noise.

Some say the threads don't stand up as well to heavy use as Delrin is not as hard as metal. True, but it depends how you treat them. I have a 10 yo Delrin MWSS200 with a female thread that goes on a couple of my rifles regularly. I am careful when I screw them on & off, but I am the same with metal units too. Threads can be fragile regardless of the material, if care isn't taken with them.
Click to expand...
As a luddite, nicely machined bespoke bits of shiny alloy look better than repurposed bits of plastic. As to the performance, I've only tried the Decimeater against the factory HW100 silencer, at 1m in front of the barrel, the Hogan was quieter on my Ripley Elite and a friends HW100 according to a proffessional decibel meter (it was pre Covid, I do not recall the numbers) interestingly the HW100 sounds quieter to the ear, the Ripley is mechanically louder than the HW100. It seems to me that sound perception is very different from various locations from the source. For £50 that i see it's being offered online at the moment, the Decimeater is bloody good value for money 😁👍
 
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