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Thread: Hw35 specifications, help

  1. #1
    Join Date
    Jan 2008
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    Gateshead
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    Hw35 specifications, help

    I've been searching for a while and I've had no joy. I'm looking for some specifications on the Hw35, something's tickling my interest.

    Does anyone have the Piston weight for the hw35.

    I know it is a variable, but for a .22 how many mm of preload would you need.

    Again, I know there's variables....
    How have people found the differences between, the leather seal, synthetic and O rings.....More/less preload from one seal to another. And if piston weight had to be altered?

    Thanks for your time, sorry for been vague.
    Andy


    This information is from the threads at the bottom of this post.

    Model Bore D (mm) Stroke (mm) Swept Vol.(cc) TP D x L (mm) TP Vol. (cc) SCR Piston(g) Caliber
    HW35 Early 30 65 45.95 4x26 0.327 141:1 - Leather seal
    HW35 Late 30 65 43.83 2.8x26 0.160 274:1. Synthetic


    Springs From my database:

    WEIHRAUCH HW35 23.2 16 3.6 220 27 Cobham
    WEIHRAUCH HW35 23 16 3.5 240 Ox
    WEIHRAUCH HW35 23 16 3.6 230 Forum
    WEIHRAUCH HW35 23 15.8 3.6 240 Versandhaus
    WEIHRAUCH HW35E 23 15.8 3.6 240 BBS

    http://www.airgunbbs.com/showthread....+spring+length

    http://www.airgunbbs.com/showthread....ious-springers

  2. #2
    Join Date
    Nov 2012
    Location
    Hereford
    Posts
    2,985
    If you look up uncle Mick (T20) and his recent posts, you should find most of the answers you want as he's done a lot of work on the hw35

  3. #3
    Join Date
    Jan 2008
    Location
    Gateshead
    Posts
    1,430
    Hi,
    Yes, I've just seen one thread. I'll have a read later. Thank you for pointing that out. I did find another post, that answers one of my questions, I'll add it here just incase anyone needs it.
    Thanks




    remember 35 pistons weigh over 270g so you could bring the piston weight down to 250g and this may remove some of the slammy feel yo

    http://www.airgunbbs.com/showthread....are-in-an-HW35

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