I recently got an HW44 .177 pistol. Ive got it shooting a JSB 8.4 pellet at 798fps avg which is roughly 12ftp of energy. The pistol seems to be shooting consistent on the chronograph, but Im only getting 10-13 shots per fill from 200bar down to 120bar in the green zone. Is this normal for an HW44? There also seems to be air escaping on each side of the rear of the air cylinder on each shot. Is that normal for an HW44? Is that an exhaust port blow off or is it an o ring seal issue? My only experience with air pistols is a Crosman 1720T I use for pistol field target matches. Thanks in advance for any and all info.
HW/Weihrauch HW44 question
- Thread starter guilianort
- Start date
I get one magazine per fill with mine. Not an issue for me. I hand pump to 190 bar and shoot 10 rounds with scary accuracy. Hand pumping is just 20 strokes. I'm not down in yellow when I refill. As for air escaping, don't know what to tell you except there may be an o-ring issues.
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So you are not feeling any air blast on either side of the pistol when fired? Im assuming there is an o ring issue somewhere. It would be very noticeable if you felt it during the shot. Thx, Ron
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I’m thinking if a bad o ring, the leak would be constant, except if breech ring which would possibly leak when fired. As for shot count 10-13 in 177 is low. Maybe the setting is way up in foot pound energy? Higher power =less shots. Now my stock HW 44 in 22 gave 17 shots at 14 FPE. Very accurate too.
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maybe this
it is a video in this thread about the transfer port it is a 110 but is the same as the 44
https://airgunforums.co.uk/threads/...-breech-seal-fitting-is-there-a-secret.73605/
it is a video in this thread about the transfer port it is a 110 but is the same as the 44
https://airgunforums.co.uk/threads/...-breech-seal-fitting-is-there-a-secret.73605/
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That would make sense since its only leaking when fired. Its either that or the breech seal I would imagine. Time to get some seals from AoA and have a go!
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Update ….. I tore the pistol down and discovered the transfer port seal was nonexistent. It can out in two small pieces. New seals will be here by Thursday! Thanks for all the info
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Good video link,,, I learned something new,,, the magnet on an extendable handle, to hold that screw in place till you insert the allen wrench to hold it 
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it was a blind guess but it was logical glad you found the problem but not really an easy fix
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I had a bad transport ring In my 44. If I can fix it anyone can. Your 44 has all the symptoms.
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I have a 22 and I get over 20 shots at around 700 FPS pump with a GX. The last 5 to 8 shots of my 3 mags drop into the 600 to 650 range, I still shoot all 3 mags. You’re correct, crazy accurate and smooth.
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