Hey CharlieI just reread your 14 Mod test and could not find the listed length/diameter of the mods etc.Oh Well, Thanks,Don
Thanks again for the awesome comparison, once again! The huma 30 I sent in did not have 3d printed internals. It was factory, but had a couple of felt dampeners removed from the 1st 2 chambers. But the FX +25mm extension did have 3d printed baffles.
Tons of great info resulting from tons of hard work! Thank you for taking on this project! Any chance you can provide links to some of the lesser known moderators? One that specifically has my interest is the A.U.O. mod, I'd love to give one of those a try! Thanks again for the awesome reviews!
A large majority of my shooting is at 30 fpe+. I wouldn't dare ask you to run these tests again at a higher power level. I will ask that you tell us which LDCs seem to be most effective, when you do get a gun running at higher power levels though. I mean, as in, your "seat of the pants" thoughts on it
Power level isn't going to have so much to do with sound level as the actual relationship between pressure, valve dwell, and barrel length. And I suppose a shroud or lack thereof. My 65fpe .22 is VERY quiet with just a single module from my huma moderator. (basically just a single expansion chamber maybe 2.5" long and eland end cap) On target, not so quiet That said, I think the test you did do here, is highly indicative of the actual potential of the various units.
Yeah, I'm thinking to test with the Wildcat's power level cranked up a bit and shooting heavier pellets (maybe slugs) to keep them in the barrel a bit longer. And then measuring the dB output from 50 feet away downrange, and see what happens then.I understand what is meant by a unit sounding louder to one's ear, but that ear (mine anyway) is right there next to the gun, and yet Behind the muzzle, totally different situation. I just wanna know what the output sounds like to a bystander 50 feet away straight downrange (the distance at which some of my neighbors are literally located from where I shoot in my yard).This whole testing thing started with me not wanting to annoy these fairly close-by neighbors all around me so that criteria was primary to me. Testing at a different distance, or offset more from the line of fire, or changing any of the various other parameters, would likely end up giving significantly different results.
Technically, power itself doesn't have as much to do with it, but... Higher power usually means more air to deal with, and likely more valve dwell. I understand what you mean though 60 fpe out of a 20" barrel will usually be a heck of a lot louder than 60 fpe out of a 27" barrel. Power isn't a surefire indicator of how things will do, but it is a general reference point that can be used, and nine times out of ten, 45 fpe will be louder than 25 fpe. If all things are equal, the gun making more power will be louder.