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Thread: FWB 601 Power

  1. #1
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    FWB 601 Power

    Hi

    Put my 601 over the chrono and over a 10 shot string with jsb rs was to me a very consistent 568fps -6/+4fps giving 5.25ft/lbs

    Is this on the money or shooting a bit lower than it should?

    thanks in advance

  2. #2
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    Quote Originally Posted by GB2017 View Post
    Hi

    Put my 601 over the chrono and over a 10 shot string with jsb rs was to me a very consistent 568fps -6/+4fps giving 5.25ft/lbs

    Is this on the money or shooting a bit lower than it should?

    thanks in advance
    I put my 602 over the chrono and I genuinely took no note of the power as the shot to shot consistancy was more important to me as it'll never go over 12ftlbs.

    But in answer to your question, there is a German guy on YouTube who rebuilt his 602 and it produced just over 6ftlbs.



    All the best Mick

  3. #3
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    You will probably find a slightly higher muzzle energy with a heavier pellet, the 601's are generally used with RWS R10 for 10m target shooting, try it with them you might see 5.8-6 FtLb. JSB Exact (if you aren't paper punching) are the same weight approximately, again they may well nudge 6 FtLb but the gun was never designed to exceed the German "F" class of sub 7.5 Joule so you really can't expect that much more than you are already getting!
    BSA Super10 addict, other BSA's inc GoldstarSE, Original (Diana) Mod75's, Diana Mod5, HW80's, SAM 11K... All sorted!

  4. #4
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    Quote Originally Posted by T 20 View Post
    in answer to your question, there is a German guy on YouTube who rebuilt his 602 and it produced just over 6ftlbs.
    Ah, found it :-

    image.jpg

    175.8 m/s = 577 f/s

  5. #5
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    Quote Originally Posted by T 20 View Post
    Ah, found it :-

    image.jpg

    175.8 m/s = 577 f/s
    thanks will have a google of that, have a piston seal but not in the mood to strip the 601 at the moment as just had the 300s apart and in the middle of sorting my LGV Speziale

  6. #6
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    Quote Originally Posted by rancidtom View Post
    You will probably find a slightly higher muzzle energy with a heavier pellet, the 601's are generally used with RWS R10 for 10m target shooting, try it with them you might see 5.8-6 FtLb. JSB Exact (if you aren't paper punching) are the same weight approximately, again they may well nudge 6 FtLb but the gun was never designed to exceed the German "F" class of sub 7.5 Joule so you really can't expect that much more than you are already getting!
    I was expecting it to hover somewhere around the 6ft/lb mark, just wondered if it was a little too low at 5.25, re the R10 pellets many thanks for that info was completely unaware of that. Will have a look through my pellet stock and see what I have that is 8.2gr equivalent, I know I have meisterkugeln but they are only 7gr

    Many thanks for the input

  7. #7
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    Quote Originally Posted by GB2017 View Post
    thanks will have a google of that
    Allow me :-

    https://m.youtube.com/watch?v=Sh6gQYLtzOY


    ^ This is part one of three, part three has the pellet tests.

  8. #8
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    Fwb 601.

    My 601 puts out a 5.1 - 5.3..

    Just as accurate my Original 66 has a feeble 3.5 - 3.7..

  9. #9
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    My 601 (when I had it) with a new set of seals was exactly 5.2 every shot.
    4.50mm R10 pellet.
    Amazingly accurate!

  10. #10
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    Quote Originally Posted by T 20 View Post
    Allow me :-

    https://m.youtube.com/watch?v=Sh6gQYLtzOY


    ^ This is part one of three, part three has the pellet tests.
    thanks for that

  11. #11
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    Quote Originally Posted by shanksey55 View Post
    My 601 puts out a 5.1 - 5.3..

    Just as accurate my Original 66 has a feeble 3.5 - 3.7..
    Quote Originally Posted by MrChipShoulder View Post
    My 601 (when I had it) with a new set of seals was exactly 5.2 every shot.
    4.50mm R10 pellet.
    Amazingly accurate!
    So as mine is pumping out 5.25 its in the right ballpark, thanks for the confirmation gents, that piston seal will be going in the parts bin for a while yet

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