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Moderator for Magnum Springer Rifle

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    55chevy
    Participant
    Member
    United States
    Accuracy: +1

    Anybody have any success using a moderator on a powerful spring rifle like the Beeman R1? I read an article written by Robert Beeman some years ago who said moderators had little affect dampening sound on magnum springers due to the very small amount of air that is used and exits the barrel when shooting a pellet.  However, I am interested if anybody would like to share their direct experiences with moderators on magnum springers that shoot pellets at less than the speed of sound. If anyone has found that moderators work well on magnum Nitro Piston rifles that would be interesting to know as well as a comparison …. thanks !!!  Almost forgot … anybody have any success in dampening the sound of pellets hitting a steel pellet trap, I tried putting ballistic putty on the back side of a pellet trap which did help but not quite enough, any ideas you'd like to share?

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    JungleShooter
    Participant
    Member
    Peru
    Accuracy: +70

    Mmmn, quieting down a magnum springer — sorry, got no convenient advice there (that was one of the reasons I switched to PCPs).

     

    Quieting down a steel trap? Sorry, same type of advice…. — switch it for a cardbox full of old clothing, duct seal, rubber mulch. You can always put a steel plate behind it if you're unsure if it stops the pellets.

     

    Sorry for not having any more convenient advice than basically telling you to "get rid of what you have"….. 😣 

     

    Matthias

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    jccams
    Participant
    Member
    United States
    Accuracy: +2

    I put a factory Weihrauch moderator on my HW95 .22, although it is not a "magnum" springer it did make a noticeable reduction in noise, contrary to a lot of beliefs it doesn't do much.

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    55chevy
    Participant
    Member
    United States
    Accuracy: +1

    Thanks Jungle Shooter I appreciate your thoughts

    Thanks Jccams your response with regard to the your moderator on the HW95 was great … if you don't mind … where did you purchase the factory Weihrauch moderator .. it might just work on the R1 which I've been told is very similar to the HW95 …

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    SteveP-52
    Participant
    Member
    United States
    Accuracy: +9

    Part of the noise you hear is from the action itself during firing with your cheek resting against the butt of it. A good tune and lube while not completely will quiet that a bit.

    Moderators on break barrels do work…part to limit the muzzle noise, even more for limiting the dowrange report. While it's been tested and proven with decibel meters, an even easier test is to find a shooting partner, stand downrange in a safe place and have them shoot your rifle both moderated and unmoderated. There is a difference.

    JS had a good idea with the rubber mulch. Doubled up box, 5 gallon bucket, maybe even make your own out of 2×4's and plywood.

    Weihrauch makes moderators. Link to the few at AoA, pricy but supposed to work well. You'll have to mic the barrel to find out your barrel size: 

    https://www.airgunsofarizona.com/index.php?p=catalog&mode=search&search_in=all_but_description&search_str=weihrauch+moderator

    Here's another I've seen a member of another forum say he uses and says they work very well too. Look at the list for other options they also carry:

    https://www.wolfairguns.com/index.php?cPath=32

    There's also the option I've seen a couple shooters mention of having the end of the barrel threaded for 1/2-20 UNF and using a DonnyFL moderator.

    Hopefully some of the above helps.

     

    • This reply was modified 4 months ago by SteveP-52.
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    AirShot
    Participant
    Member
    United States
    Accuracy: +16

    Years back I built a carbine barreled .22 cal R1 for hunting and pest control. My rifle avg 825-830 fps with CP 14.3 gn pellets. Fast lock time and a pleasant thump when the pellet left the barrel. A few years before Tom Gore made a moderator for springers that had mixed reviews. I did some testing myself and at first, didnt think it did much.  Then I had others shoot my rifle while I went down range in a safe position, there I could see a real difference.  Atbthe rifle itself there is much mechanical noise and some of that is carried down range.  The Vortec moderator did lessen the noise downrange!!!  Not as much as a pcp moderator but a noticible reduction!  On my R1 it toned it down enough to be able to take follow up shots on squirrels in case of a miss.  It also allowed me to take two crows at 50 and 60 yards.   So bottom line is yes it helps downrange but mabey not noticible from the firing position. 

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    jccams
    Participant
    Member
    United States
    Accuracy: +2

    55chevy

    Thanks Jungle Shooter I appreciate your thoughts

    Thanks Jccams your response with regard to the your moderator on the HW95 was great … if you don't mind … where did you purchase the factory Weihrauch moderator .. it might just work on the R1 which I've been told is very similar to the HW95 …

     

    This is the one I bought https://www.airgunspares.com/weihrauch15unf25weihrauchsilencer12unf-25.html

    They also have push on Weihrauch moderators https://www.airgunspares.com/weihrauchpo16mmweihrauchsilencer16mmpushon.html

     

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    MMCM13
    Participant
    Member
    United States
    Accuracy: +4

    I put a moderator on a Hatsan Dominator and did notice the difference. I was surprised as well, I didn’t think the muzzle was a significant sound source, but the ear could tell.

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    55chevy
    Participant
    Member
    United States
    Accuracy: +1

    Thank you everybody for all your feed back and suggestions … it was all very helpful and I appreciate it. I'm going to get one of the a factory Weihrauch moderator for my R1, it has a 16mm barrel and one of the Weihrauch moderators will fit and still allow the factory front sight to stay on which is great for me when I want to take the scope off and use open sights. I'm looking forward to the reduction in noise, and the ability to take follow up shots is a nice added benefit … thanks again all !!

    For the pellet trap I'm going to put mold release on the exterior, place it in a slightly larger cardboard box, then fill the void with expanding foam, I'll post back here how well that works

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    jccams
    Participant
    Member
    United States
    Accuracy: +2

    Once you get the moderator report back.  Airguns of Arizona also carries that moderator but it shows currently out of stock  https://www.airgunsofarizona.com/airgun-silencers/weihrauch-moderator-for-16mm-barrel-models/

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    Deerstalker
    Participant
    Member
    United States
    Accuracy: +4

    HW95L shot cycle with factory moderator.

     

     

     

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    55chevy
    Participant
    Member
    United States
    Accuracy: +1

    Thanks DeerStalker … that video really helped my understanding of what I can expect when I get my moderator … just curious but did your HW95L come with what looks like 1/2 – 20 threads or did you have someone mill it?

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    jccams
    Participant
    Member
    United States
    Accuracy: +2

    That package came with a threaded barrel.  When I converted my HW95 to a .22 I bought a factory Weihrauch 12.25" carbine barrel threaded 1/2-20.  Basically turned it into a HW95K.

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    Deerstalker
    Participant
    Member
    United States
    Accuracy: +4

    55chevy

    Thanks DeerStalker … that video really helped my understanding of what I can expect when I get my moderator … just curious but did your HW95L come with what looks like 1/2 – 20 threads or did you have someone mill it?

    The HW95L came with the moderator from AoA.  The barrel thread is 1/2" diameter & 3/4" long with 20 threads = 1 inch.  The female threads in the moderator start after the bevel.  Here is a close up pic.  The moderator is very solid and I use it to cock the rifle. I also remove the moderator when using my 50 lb mono pull through with several patches tied on with overhand knots.

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    JayJay
    Participant
    Member
    United States
    Accuracy: +5

    @deerstalker

    How did you get the moderator off? Were the threads loctited? I have an HW95L field pro from Arizona Airguns. The moderator is on there super tight and I don't want to reef on it.

    UPDATE! I got the moderator off without problems. There was no loctite. I can confirm that the true barrel length is 12.25"

    • This reply was modified 4 months ago by JayJay.
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    AlfredB
    Participant
    Member
    United States
    Accuracy: +2

    It will help with the sound/noise level certainly, not as much as it will a PCP.

    here’s JC doing a great side by side comparison of the same moderator mounted to various air rifles.

    https://airgundetectives.com/covert-airgun-moderator-by-cattleman-guns-full-review-by-airgun-detectives/

     

    cheers and have a great Labor Day!

    Alfred

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