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  #1  
Old 7th October 2016, 06:51 PM
Binchie Binchie is offline
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Default HW100T Silencer

Hi all,
I've just bought a HW100T supposedly new off a Czech website (long story). It's in .177 and sub 12 foot/lb.
The question I have is that I expected the silencer to be screwed, but it's slip on and held in place with a grub screw.
Date on the cylinder is 2016/04.

Does this sound correct, or do you think it's and old gun?
I sound checked it at an in door range at 95dBa.
Serial is 1953**8.

Serial number on the barrel does match the serial number on the gun.
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Old 7th October 2016, 07:03 PM
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All the later uk spec 100's have 1/2 unf threads,maybe it's been rebarrelled for some reason and is a factory B grade after being sorted by an rfd or maybe it's a Euro spec'd rifle?
Older models had the mod bonded on,first I've heard of with a grub screw to capture it
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Old 7th October 2016, 07:25 PM
Binchie Binchie is offline
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Thank you for such a quick reply.

It certainly wasn't bonded. Can off really easily.
At first I thought it may have had a thread protector and all HW100 silencers that shipped with the gun, but it seems not.

I'll email the web site and see what they say.

Cheers for replying.
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Old 7th October 2016, 07:52 PM
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If you get a reply let us know what they say,the only other possibility is that it's an fsb model with the shroud removed,that might explain an unthreaded barrel
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Old 8th October 2016, 01:37 PM
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I've not had feedback from the website yet, not surprising being the weekend.

When I did the chrony readings with Accupell pellets. Great grouping at 10m so was very happy.
Went to the club, were you use their pellets and grouping was all over plus the noise made me look at the silencer, which is how I span the barrel.
Yesterday I removed the action, tightened the grubscew and then rezero the scope. Grouping was all over. All I had with me was the RWS Hobby pellets. I didn’t realise that pellet type was so sensitive over 10m.
I went out to 15m and obviously it was no better. After a nights sleep, I tested the Accupell and Hobbies side by side. Hobbies were 30-40mm over 15m, the Accupell was 15mm.

I’ve just gone and bought son AA diablo field and at 15m they’re literally making 1 big hole, its fantastic and I’m smiling from ear to ear.

I'll let you know what the factory says about the barrel, but I can live with the slide on silencer if the rifle hots something like straight.
Thanks again for taking the time to reply.
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Old 8th October 2016, 03:01 PM
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can you upload a photo to somewhere and link to it so we can see the barrel end?
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Old 9th October 2016, 02:01 PM
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I'm no IT expert, so I hope these work.

I thought it may be have a thread protector, but I think the mark is actually were the silencer grub screw was rotated.


https://dl.dropboxusercontent.com/u/...%20end%204.JPG

https://dl.dropboxusercontent.com/u/...rel%20send.JPG

https://dl.dropboxusercontent.com/u/...20side%202.JPG

https://dl.dropboxusercontent.com/u/...20side%203.JPG
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Old 9th October 2016, 02:02 PM
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I've also got a side view.

https://dl.dropboxusercontent.com/u/...4/IMG_6873.JPG
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Old 10th October 2016, 01:46 PM
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Early UK spec models had bonded on silencer (may have had a grub screw too, not sure), but it might be that guns for the Czech market have a similar arrangement. Maybe a quick email of the serial number to HW will confirm which market it was destined for. They should certainly confirm the date it was made.
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Old 13th October 2016, 08:19 AM
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When you read the next paragraph, I need you to take a deep breath and remember that while I may be advanced in years, I have only been into air rifles for 3 months.

It seems what I have is a muzzle brake. While it does not show anything on the Czech website photograph of the HW100T, if you go on the HW100S you can clearly see the grubscrew on one of the photos.
It seems this is the standard in some countries.
Now I have tightened the barrel and used Air Arms Diabolo Field pellets I can shoot 8mm ctc 5 shot groups at 30m. The limitation being my ability, not the rifle.
So I am going to get a 16mm moderator adaptor and either the Weihrauch or Hogan Decimeter silencer.

One last question. The barrel is 15.85mm diameter. Will a standard 16mm adapter be ok, or will I have to shim it out?
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