rohm twinmaster

Discussion in 'General Airgun Chat' started by Steve Bowers, Nov 9, 2011.

  1. Steve Bowers

    Steve Bowers Member

    Joined:
    Feb 8, 2011
    Messages:
    252
    Location:
    Leeds
    Club:
    Pontefract
    Hi, I've just got myself a rohm twinmaster and wish to know how to ture the power up.
    I've checked mine and it's shooting at 2.6 !
    I've checked on line and found an old thread from a bloke who got his shooting at a little over 5.0 !
    He had to increase the hammer spring as well as turning the power up. As an engineer fitting a larger spring is easy but I just need pointing is the right direction as to how to ture the power up.
    Also any advise on to what I should go up to !

    thanks steve
     
  2. Adam

    Adam Well-Known Member

    Joined:
    Jan 5, 2009
    Messages:
    1,039
    Location:
    Leeds
    Club:
    Redfearns & the UBC
    http://www.magicniner.pwp.blueyonder.co.uk/

    This chap hangs out on the BBS and UBC forums by the name of magicniner. Great engineer and all round nice bloke. He'll do the work or supply a kit of parts, inc. reg tweaks as well as hammer spring.
     
  3. Pete m

    Pete m New Member

    Joined:
    Feb 9, 2011
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    Location:
    Nuneaton
    Club:
    Greyhound
    Was you pistol new I had a new one 2 months ago and it was doing 4.5fpe out the box
     
  4. paul4be

    paul4be Why do I bother????????

    Joined:
    Feb 22, 2011
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    1,170
    Location:
    Richmond, North Yorkshire
    Club:
    Darlington RA
    Mine is currently running at 5.5fpe.

    I used one of Magicniner's little kits as mentioned above. Increased hammer spring rate without a huge increase in hammer preload which would cause venting (uses twin springs) and reshimming the reg to suit. Takes a bit of setting up, but does the job!
     
  5. Steve Bowers

    Steve Bowers Member

    Joined:
    Feb 8, 2011
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    Location:
    Leeds
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    Pontefract
    Rohm

    Hi all,

    Many thanks to Pete, pete and adam.
    All I need now is to get a contact number for this " MAGICNINER " and I should be on my way !!!!

    Steve
     
  6. paul4be

    paul4be Why do I bother????????

    Joined:
    Feb 22, 2011
    Messages:
    1,170
    Location:
    Richmond, North Yorkshire
    Club:
    Darlington RA
    Pm him on the BBS or via the Umarex Boys Club pistol forum, he uses the same user name on both and is a top bloke to deal with.
     
  7. sjburgon

    sjburgon Member

    Joined:
    Oct 31, 2011
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    199
    Location:
    Leeds
    Club:
    Pontefract ( P.A.R.C)
    Youve guessed it mr bowers

    I have just made a tuning kit for a rohm out of a coke can........hope youve been practising for sunday
     
  8. raygun

    raygun Non member

    Just think it may be worth pointing out that if your pistol wanders over the 6 FPE mark you've got yourself a Section 5 Prohibited weapon.

    Be careful.

    ATB
    Ray.
     
  9. paul4be

    paul4be Why do I bother????????

    Joined:
    Feb 22, 2011
    Messages:
    1,170
    Location:
    Richmond, North Yorkshire
    Club:
    Darlington RA
    I agree, lots of testing with different pellets is needed to be safe. Took a while with mine until I was happy.
     

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