Thanks very much. I actually did a while back, but I never received a reply. I wasn't sure if I had gone about it the wrong way or not.
Quote from: jmarkreed on March 16, 2021, 05:32:48 PMThanks very much. I actually did a while back, but I never received a reply. I wasn't sure if I had gone about it the wrong way or not.So did you order one?
Quote from: Rick67 on March 17, 2021, 04:43:35 PMQuote from: jmarkreed on March 16, 2021, 05:32:48 PMThanks very much. I actually did a while back, but I never received a reply. I wasn't sure if I had gone about it the wrong way or not.So did you order one? Thanks sir Richard, truth is they are down to their last 20 units or so with no plans to make any more.
It also appeared that silencers with more open internal structures that provide room for the incoming air to expand quickly, were more effective on shrouded or baffled guns, but units with more complex internals that directly engage the airflow and force it into convoluted patterns thereby delaying their exit time, seem better able to handle the full air blast from a straight barrel, while still working quite effectively on shrouded guns.
It also appeared that silencers with more open internal structures that provide room for the incoming air to expand quickly, were more effective on shrouded or baffled guns, but units with more complex internals that directly engage the airflow and force it into convoluted patterns thereby delaying their exit time, seem better able to handle the full air blast from a straight barrel, while still working quite effectively on shrouded guns.A few things I noticed among the units that seemed to be desirable:Durability: Metal threads are preferable to synthetic ones for longer wear, and less chance of cross-threadingDisassembly Friendly: the ability to take the unit apart for cleaning and maintenance would seem important in the long runBang For Buck: how quiet vs. how much
You know what would be REALLY interesting?Record all the shots, then run them through a digital FFT analysis. (Easy to do with any consumer DAW, like Protools, etc.)This shows the amplitude across the full frequency range, kind of like looking at a relief map of a mountain range.
Finally I realized the problem: It's the Shogun itself causing that ring! The aluminum body goes off like a bell. IMO, all moderators should be made out of something that's acoustically inert, like high-density plastic or CF.
Quote from: Cableaddict on April 09, 2021, 08:41:12 PMFinally I realized the problem: It's the Shogun itself causing that ring! The aluminum body goes off like a bell. IMO, all moderators should be made out of something that's acoustically inert, like high-density plastic or CF.Yes, but an aluminum body tube does a number of valuable things:It keeps the "inlet" and "outlet" concentric and aligned;It is able to resist muzzle pressure of more powerful PCPs; and survive a long time with repeated use;It creates an impression of quality due to the above, that justifies the price-point.Rather than use a weaker plastic tube, or more expensive CF outer tube, aluminum tubes just need to be lined with a viscoelastic damping material to reduce that ping. Such material can easily be applied to the outside, but that hides the nice anodized aluminum. Thus, the "ring" damper material needs to be applied as an "internal sleeve"; and Bob's your uncle, as they say on the other side of the pond. One way for DonnyFL to achieve that cheaply and elegantly would be to have an O-ring contact the aluminum tube ID at each baffle wall OD, rather than just at the two ends.
I am very new to air guns tho a long time powder burner. I work in healthcare so my free time is literally nonexistent for the time being and all I have is a bit of time for plinking in my backyard every now and again. This topic is of interest and on point since we don't want our neighbors to call the sheriff....In any case, I don't have the knowledge to contribute to the thread other than a heartfelt THANK YOU to @mrbulk and the other contributors for their generous sharing of information, the time they put in collecting this data and generally being such nice folks. Stay safe, stay healthyCheers,brewbear
Yeah! I just received my AUO, some beautiful machining work done on it. Also don't recall if it was mentioned but all the parts appear to be anodized Vs. simply painting, very nice touch. To be perfectly frank, having seen the guts of many LDC, I'm curious to see how this seemingly simple 3D printed core does compared to some others, and how it holds up. My intent is to work this LDC hard, starting with around 20fpe and working my way up through 50+ and see what 'shakes out' (pun intended). I'm glad I pulled the trigger on buying one of the last of these LDC, the quality is outstanding (even at twice the price) and should easily last a lifetime. Should the core become damaged for any reason, it's easily replace, or easily upgraded should a V2 version become available some day as technology changes. Crazy busy with 'real work' and family right now, so 'hobby time' is at an all time low, but when I get a chance to do some testing I'll try to post the results.M
Thanks for the time and effort you put into the test. I'm outfitting a new gun and was thinking about a different moderator than my default setting of the STO Falx. I chose the Huma 40 standard.