GTA
All Springer/NP/PCP Air Gun Discussion General => Machine Shop Talk & AG Parts Machining => Show us your Custom Airgun Parts (TRICKS-N-TIPS) => Topic started by: mccoy on April 09, 2013, 10:52:46 AM
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has anyone tried to put something at the end of the compression chamber to make a break barrel air rifles quieter. I mean to make the sound of the piston hiting the end of the compression chamber quieter or cushion the sound with maybe some felt or are rubber stopper.
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Maybe a garden hose washer?
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has anyone tried to put something at the end of the compression chamber to make a break barrel air rifles quieter. I mean to make the sound of the piston hiting the end of the compression chamber quieter or cushion the sound with maybe some felt or are rubber stopper.
If the gun is designed and setup properly, the piston shouldn't be violently striking the end of the compression tube. If it is, you likely have a loss of compression (bad or leaking seals, or perhaps an over sized barrel or undersized pellets). Beyond efficient sealing, most of the noise is from spring vibrations.
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Yup ... IDEALLY when your shooting a correct weight pellet for gun ( NOT The alloy/plastic Very lightweight stuff ) and guns seals are in good shape ( Piston cup & Breech seal ) the impact of piston into bottom of compression chamber should be minimal.
* As stated, bad seals leak compression pressure allowing VIOLENT impact.
Spring / Guide upgrades deal with Damping vibration from the shot cycle.
With good seals and a Snug fitting spring guide & correct lubrication gun should fire with just a solid THUMP.
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A large portion of, but not all the noise that a spring rifle makes is mechanical. As said before, one that is operating properly will make the least noise, but still will not be "silent". Chances are the sounds you're hearing is not the piston hitting the end of the chamber. If that were the case, continued firing would eventually destroy the gun. Gas ram/piston airguns lack the buzz and twang of coiled metal springs, but they can have a rather sharp crack when fired. A barrel shroud (like Crosman/Benjamin put on some of their rifles) or a suppressor (where legal) can reduce the muzzle sound some. If your pellets are breaking the sound barrier (approx 1100 fps at sea level) that can cause a sonic crack. Using heavier pellets to go below the speed of sound will help eliminate this problem.
Nathan
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has anyone tried to put something at the end of the compression chamber to make a break barrel air rifles quieter. I mean to make the sound of the piston hitting the end of the compression chamber quieter or cushion the sound with maybe some felt or are rubber stopper.
Actually, the part of the piston that slams on the port end is the seal. If your tophat is metal, then that will be metal to metal inside the piston and the tophat. I have a genesis that I have piece of urethane sheet in front of the tophat and somewhat made the sound less metalic
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i found that if you wrap a couple towels and a feather pillow around the gun it gets quieter. not so practical in the field though.
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Solid thump! Lol its true unless u able the break the sound barrier.
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I used an oring in the bottom that made it thump ,and lost a few fps but it was quiet !
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The vast majority of the foregrip on my TG-1 is hollow. I was considering coating the inside with knock off flex seal just to see if extra rubber layers would absorb/disperse some unwanted vibrations. I've already applied a couple layers to the buttstock and cheek rest for added grip. Very satisfied with the results.