GTA
Airguns by Make and Model => Hatsan Airguns => Topic started by: AppalachianAirgunner on October 20, 2022, 07:10:26 PM
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I’ve seen the adapters for donniefl moderators for the hatsan carnivore, but do they make such devices for the hatsan break barrel in .30 cal? It’s not an abusively loud rifle but it’s still quite loud and if possible I’d like to see if i can reduce the report.
I tried searching on here but didn’t see anything specific to nitro piston break barrels, so if anyone could push me in the right direction please do.
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Hopefully someone at the Turkish gate has a moderator on their 130, or knows someone making custom ones for it.
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I have moderators on a few break barrels. They make a little difference, operative word is LITTLE. On PCP's they can make 10-25 dbl. difference.
On BB's maybe 1-2 dbl. However, sometimes they act as an air stripper and accuracy improves slightly.
If you need a slip on can, look at Weihrauch's.
Measure your barrel diameter. Many adaptors available for 15 and 16mm barrels.
-Y
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Moderators on springers actually work, and the better the gun is, the better they work (ie. less mechanical noise means the moderator takes out more of the report). It's not just about the level of noise - it's about the type of noise.
A moderator on a springer transforms a gun-like muzzle 'Pop!' into a dull, nondescript 'put'. That makes a world of difference, both with regards to nosy neighbors and to wary game animals, even if the decibels aren't too different.
Everybody's ears are different, for sure. I have a sensitive hearing and I trust mine.
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Timothy,
How much a moderator helps on a springer depends on how powerful it is compared to its caliber and barrel length (barrel bore air volume). Springers produce very spiky pressure pulses, and as a result moderately powerful springers with long barrels have a low muzzle pressure. A moderator serves to reduce muzzle pressure released to the atmosphere, and to contain the "pop" that results from the pellet leaving the barrel muzzle.
I believe a .30 caliber Hatsan springers produce 30 FPE from a 10" barrel. Some of them have overmolded moderators, such as the Model 135 Vortex QE: www.pyramydair.com/product/hatsan-135-qe-vortex-air-rifle?m=3976#7594 (http://www.pyramydair.com/product/hatsan-135-qe-vortex-air-rifle?m=3976#7594)
The point is that your Hatsan may benefit from a moderator, if it did not come with one from the factory.
If you can't find a slip-on moderator, I will design one to fit, if you provide the appropriate dimensions; such as barrel diameter and possible front sight dimensions and placement. The design would be intended for 3D printing; so I would provide the STL print file. You will need to find someone to print it for you. Such a printed moderator would not be strong enough to use as a cocking handle.
You would need to suggest maximum length and diameter preferences, although some of that would be limited by the printer. My suggestion is to consider the original equipment moderator on the 135 to estimate the internal volume for a "50% sound reduction". See image below:
(https://www.pyramydair.com/images/PY-3976_Hatsan-135-QE-Vortex.jpg)
If the bulk of your Hatsan's noise is spring buzz, then a properly fitted spring guide and other measures such as polishing the ends of the spring are going to be much more effective than a moderator. You can better distinguish muzzle pop from spring buzz and piston clunk by standing off a safe distance to the side, while someone else shoots your Hatsan.
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If the bulk of your Hatsan's noise is spring buzz, then a properly fitted spring guide and other measures such as polishing the ends of the spring are going to be much more effective than a moderator. You can better distinguish muzzle pop from spring buzz and piston clunk by standing off a safe distance to the side, while someone else shoots your Hatsan.
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True dat! ;D
-Y
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Timothy,
If you have a DonnyFL and simply want an adaptor, such a thing can also be custom designed and printed. I envision a threaded metal tube, threaded into a plastic mount that slips onto the barrel for a sufficient length. But, you need to show an interest in your own thread, before anyone else will.
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Timothy,
If you have a DonnyFL and simply want an adaptor, such a thing can also be custom designed and printed. I envision a threaded metal tube, threaded into a plastic mount that slips onto the barrel for a sufficient length. But, you need to show an interest in your own thread, before anyone else will.
That certainly seems practical, I’ve got the gas ram 130 synthetic, so the biggest noise I’m hearing is the pellet leaving the barrel. It’s so far under the sound barrier with the heavy pellets but I think a slightly longer barrel with baffles as you described would work quite well to dampen the report. Sorry for the delay in response, my wife just had our son and it’s been chaos around the house the past few weeks.
Combine that with my maddening work schedule and my free time has dissolved quite a bit.
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I’ve had one of those in the past and did install a Donny Fl adapter with a Tanto. I felt the gun itself wasn’t loud enough to need a Donny Fl it just added unnecessary length
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Congrats on your son's birth, Timothy
It looks like the Hatsan 130 has a built in moderator, with a removable front sight: https://youtu.be/N1f3rxnBs-o?t=81 (https://youtu.be/N1f3rxnBs-o?t=81)
In that case a slip-on moderator extension can be designed with a "window" for the front sight. The sight would be removed and reinstalled into its dovetail, while sliding the add-on moderator such that the front sight is back in position.
If you provide the OD of the existing moderator to the nearest 0.001", and the front sight base width and length, I should be able to design a 3D printable extension. I will try to use reasonable dimensions. If you have strong opinions about the added diameter and length, then express them, please.
It looks like there is a threaded muzzle cap. That provides an opportunity for a more elegant, if weaker connection method: To replace the cap with a one piece moderator that screws in.
Now, it may be possible to use a metal tube that is threaded to "bridge the Hatsan thread to plastic add-on moderator. For any considerations the diameter and pitch of the thread on the stock muzzle cap will be required. Also the depth, as the cap is probably holding stock baffles inside. If there are no baffles in the stock muzzle shroud, then the ID and depth of that cavity should be measured, because adding baffles inside there should be the first step towards making the stock muzzle device more effective.
(https://www.pyramydair.com/images/zoomed/PY-4586_Hatsan-MOD-130S-Vortex_1524235543.jpg)
(https://www.pyramydair.com/images/zoomed/PY-4586_Hatsan-MOD-130S-Vortex_1524235548.jpg)
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It is possible that the solution you seek already exists, Timothy:
https://www.ebay.com/itm/333276251950 (https://www.ebay.com/itm/333276251950)
(https://i.ebayimg.com/images/g/JKgAAOSwryheGl12/s-l1600.png)
https://hajimotoproductions.com/index.php/product/hatsan-qe-baffle-bundle/ (https://hajimotoproductions.com/index.php/product/hatsan-qe-baffle-bundle/)
https://youtu.be/vRALf53NXxw (https://youtu.be/vRALf53NXxw)
(https://i0.wp.com/hajimotoproductions.com/wp-content/uploads/2021/01/HTSN_SP_QE-9.jpg?fit=800%2C600&ssl=1)
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If you order either of the above, don't forget to select the .30 caliber option.
Then there is the DonnyFL screw in adaptor for commercial moderators:
https://donnyfl.com/products/hatsan-qe-1-2-x-20-unf-adapter
(https://cdn.shopify.com/s/files/1/1875/7837/products/Hatsan_QE_2400x.png?v=1587392887)