I figured this might help some people out that are trying to quiet down their Leshiy using DonnyFL's extended moderator. My initial results with this moderator on my Leshiy (with the 350mm / .25) were okay. I wasn't expecting the world to go silent, but it did take things down a notch from the stock insert.
I had spent a couple of hours playing around with a bunch of different types of foam and felt that I got - some were better than others, and some were just terribly loud. Then, I started thinking about Dynamat, and remembered how one some rubber straps that I got a year or so ago felt similar to what I had remembered Dynamat feeing like. I decided what the hell, let me grab one and cut down a couple of strips and see if they produced better results (this is what I mean in case you do not follow)..
Low and behold, I did a quick test using a couple of pieces on top of the thick felt that DonnyFL sent with the moderator, wrapping them together with some stiff reg felt and poof! The sound level dropped significantly!
It's not as quiet as my Sumo on my p-rod, but my Leshiy now sounds more along the lines of a 1" thick branch breaking in half. I had tested this with the default HST settings with the default 110 bar on my Huma, again 350mm barrel / .25 (with the 25.39gr JSB's - the pellet strike sound level is what it is, obviously).
If you're trying to shave off some decibels with a similar setup, try it out and see. YMMV - what worked best for me was one thicker 1/2" strip and one thinner ~1/4" strip on top of the thick felt, wrapped tightly with thin felt (so the rubber rests on the top side of the extension, with the thicker felt resting underneath them between the moderator holes).
I'll post some photos the next time I dissect it in case anyone wants more visual references.
I had spent a couple of hours playing around with a bunch of different types of foam and felt that I got - some were better than others, and some were just terribly loud. Then, I started thinking about Dynamat, and remembered how one some rubber straps that I got a year or so ago felt similar to what I had remembered Dynamat feeing like. I decided what the hell, let me grab one and cut down a couple of strips and see if they produced better results (this is what I mean in case you do not follow)..
Low and behold, I did a quick test using a couple of pieces on top of the thick felt that DonnyFL sent with the moderator, wrapping them together with some stiff reg felt and poof! The sound level dropped significantly!
It's not as quiet as my Sumo on my p-rod, but my Leshiy now sounds more along the lines of a 1" thick branch breaking in half. I had tested this with the default HST settings with the default 110 bar on my Huma, again 350mm barrel / .25 (with the 25.39gr JSB's - the pellet strike sound level is what it is, obviously).
If you're trying to shave off some decibels with a similar setup, try it out and see. YMMV - what worked best for me was one thicker 1/2" strip and one thinner ~1/4" strip on top of the thick felt, wrapped tightly with thin felt (so the rubber rests on the top side of the extension, with the thicker felt resting underneath them between the moderator holes).
I'll post some photos the next time I dissect it in case anyone wants more visual references.
