Received my new Compact .177 today.
Didn’t have much time to play with it but I think I’m going to like it. One thing I was a little surprised about was the noise. It’s not obnoxious but louder than I expected.
The hole in the shroud is big enough for a .22 to go through. Would that be normal? Just wondering.
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Viewing 11 replies - 1 through 11 (of 11 total)
You will learn to live with it 😆 That loud is not so strange. Strange is without LDC :whistle:
Yes Zonk,
I’m aware of some really great after market ldc’s but anything that makes it longer kind of defeats the purpose of getting the compact in the first place, IMHO. Heavy on the humble :confusedn:
Donny’s shroud and LDC really make a difference also…
Thanks, HOOT,
I’ll look into that. I don’t have a drill press so not sure I’m crazy about taking a hand drill and drilling holes in a brand new air rifle.
I’d really hate to fux it up 😳
.
Dear Squirrel-Honker…
There is a long history of reducing air exhaust pressure by drilling some small holes in the rear of the shroud. This allows release of some of the air pressure prior to it being “processed” by the shroud baffles.
Don’t go nuts, just eight holes, about 1/32nd inch diameter each, in an even circle around the rear of the shroud. It will help. Some have drilled larger holes in the bottom of the shroud where it’s covered by the forearm which helps muffle the exhausting air.
Hoot:
I would think maybe the shorter shroud helps make it louder. I thought about taking some pics but it really looks just like the rest of them with synthetic stocks.
You at least have to post some NICE pictures of the little fart.
Congratulations on new gun. I know the feeling. I’m wondering why the 177 is not significantly quieter? That’s a bummer.
Thanks, GKU. I have a .22 standard tuned for 885 with 18’s. The compact is shooting 10.3s @ 880 according to Charlie. I haven’t run a string yet. I’m really looking forward to bonding with this little gem
My Compact 177 cal shroud cap hole measures .256″ diameter, enough for a 25 cal pellet to fit through.
My 22 standard is tuned to send JSB 18g @ 880 fps.
My Compact 177 is tuned to send JSB 10.34g @ 895 fps.
My 22 is louder by about 2 decibels.
Congrats squirrelhawker you won’t be disappointed, a great little gun !
The Sound Signatures if someone is interested at the above velocities…
22 standard / OEM shroud no mods.
Mono
Min Sample Value: -32768
Max Sample Value: 32767
Peak Amplitude: 0 dB
Possibly Clipped: 95
DC Offset: .011
Minimum RMS Power: -49.89 dB
Maximum RMS Power: -7.94 dB
Average RMS Power: -20.54 dB
Total RMS Power: -14.04 dB
Using RMS Window of 50 ms
177 compact / OEM shroud no mods.
Mono
Min Sample Value: -32768
Max Sample Value: 32767
Peak Amplitude: 0 dB
Possibly Clipped: 74
DC Offset: -.048
Minimum RMS Power: -50.2 dB
Maximum RMS Power: -7.85 dB
Average RMS Power: -18.3 dB
Total RMS Power: -13.47 dB
Using RMS Window of 50 ms
~ GKU
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Hi Dave,
Mines came in from WWAG shooting hot at 940ish.
After your gun breaks in a bit and when parts come into settling, about 500-800 shots.
Check the shot efficiency it has a part in the loudness/quietness of.
I set mines to 890ish using JSB 10.34g and when top off to 210 bar and shot down to 110 bar, reg set to 107 bar.
With a 6-mag = 84 shot count the efficiency/air consumption is 1.19 bar / shot.
To maximize the shot count I only adjusted the HST, which I change to a Imppu HST v3.
http://talonairgun.com/forum/viewtopic.php?f=33&t=27911&p=306590#p306590
ATB ~ GKU
p.s. post some picture(s) will ya, I’d still would like very much to see your new baby !!