1. The Forum Rules have undergone some minor changes and updates.  Please take the time to read them; it will only take a couple of minutes of your time. By doing so, you lessen the chance of incurring the wrath of the moderation team or making yourself look foolish to other members.

    90% of users posting adverts in the Sales forums need to be reminded to read the rules as their posts are wrong.  This is unnecessarily time-consuming and will no longer happen - if your advert doesn't follow the Sales Rules it will be deleted and you'll have to start all over again.

    To close this box once you've read it (and the Rules), click on the X in the top right-hand corner.

    Thank you.

    AGF Staff



    Dismiss Notice
  2. A reminder of one of the Forum Rules:

    'Behaviour

    Do not make inappropriate or offensive posts - including threats, harassment, swearing, prejudice, defamation, deliberate insults or name-calling, other negative remarks about this forum, its moderators and administrators or your fellow members. Even if this is just your own personal opinion, RESPECT YOUR FELLOW MEMBERS.'

    There have been changes made to our censoring software in an attempt to help with this growing problem.

    Click the X in the top-right-hand corner to dismiss this notice.
    Dismiss Notice
  3. Dear members,

    Our membership (like our country) consists of people from all walks of life; different in far more ways than can be listed here and each with a different view based on their experience of life - regardless of their colour, religion or cultural heritage. Every single person in the UK has been born of mixed race – we are a multi-coloured and multi-cultural country.

    As many of you are aware there are a handful of individuals amongst this membership that persist in making provocative, inflammatory, racist and otherwise offensive comments. This has been happening across the forum to a certain degree but is most especially prevalent in the Adult section.

    The moderation team has tried to stay on top of this, however unfortunately because of the ‘offensive’ nature of much of its content we don’t monitor the Adult section quite as much as perhaps we should. As a result much of this behaviour has gone unnoticed unless it has been reported to us. While the team always intended to take a "light touch" approach to the Adult section it would seem that some people aren’t quite adult enough to be left unmonitored after all.

    This behaviour is, and always has been against Forum Rules as well as the specific stipulations of the Adults forum and it will no longer be tolerated. We feel it's time to draw a line in the sand and as such from this point onward offenders will receive an immediate and permanent ban from the forum.

    In order for us to achieve our goal of restoring the forum to the friendly and tolerant place it once was, we ask that ALL members be mindful of the content they post and help us to stop unacceptable behaviour by using the 'Report' tool at the bottom of any offending post - the results of which can be seen only by Admin/Moderators.

    You should all receive a copy of this message by PM. 

    To close this message box, click on the 'X' in the top-right-hand corner.

    Dismiss Notice
  4. Hotmail block emails from us entering your inbox. Unless you can setup a safe sender you will not get activation emails from the forum. Please use an alternative provider or complain to Hotmail.
    Hotmail addresses include.

    @Hotmail.co.uk @Hotmail.com @outlook.com @Live.com
    Dismiss Notice
  5. Postings on Politics, Religion & Controversial Off-Topic Material

    The majority of users do not want to read about these subjects and people have left the forum as a result of it – this is after all an 'Airgun' Forum. It’s all very well to say they don’t have to read it if they don't want to, but as most of us use the ‘New Posts’ button there is no easy way to avoid it.

    All AGF staff members are in favour of people being able to discuss what they want, but we have to draw the line somewhere if it is upsetting other users. We don’t want to read about these topics either.

    IMPORTANT- The discussion of politics and religion is no longer allowed anywhere on the forum (including the Adult section).  The only exception is if it's airgun related - they must be put in the Airgun Related Politics section..

    We will not tolerate bullying or personal attacks, racism or any other offensive 'isms'. we will remove these topics from the forum, we will not give you an area where you can abuse each other. We will not hesitate to ban offenders.

    To clear this text box, click on the 'X' in the top right-hand corner.

    Dismiss Notice

low fps

Discussion in 'Anything Airgun Related' started by stu s410, Sep 2, 2008.

  1. stu s410

    stu s410 Engaging Member

    Messages:
    168
    Likes Received:
    0
    Location:
    Chertsey, Surrey
    Hi chaps, wonder if u can help me. My s410 .22 is producing 10.8 ftlb and an fps of 540. To me this sounds a bit low. Ive had it up to 11.6 ftlb and even then its only chucking them out at 560 fps. Is this the norm for a .22 seeing as how .177 do 700+ fps. Cheers Stu.
     
  2. Buzz

    Buzz Banned

    Messages:
    1,456
    Likes Received:
    0
    Stu, ft/lb energy is a factor of pellet weight and pellet speed, so how fast it travels is determined by the weight for any given power. If you had a 15 grain pellet then the maximum speed would be 600 ft/sec to remain within the 12 ft/lb limit, whereas with a pellet weighing only 8 grains it can travel at 820 ft/sec and still be just legal. This is why a .177 has a much flatter tragectory, it's much faster.

    Check here for more info:-

    http://www.pyramydair.com/site/articles/formulas/
     
  3. stu s410

    stu s410 Engaging Member

    Messages:
    168
    Likes Received:
    0
    Location:
    Chertsey, Surrey
    Thanks Buzz as ever, what is the top legal fps for a 12 ftlb?
     
  4. Buzz

    Buzz Banned

    Messages:
    1,456
    Likes Received:
    0
    Depends on the weight of the pellet.
     
  5. stu s410

    stu s410 Engaging Member

    Messages:
    168
    Likes Received:
    0
    Location:
    Chertsey, Surrey
    Well I didnt know that. You learn something new everyday:D!
     
  6. Buzz

    Buzz Banned

    Messages:
    1,456
    Likes Received:
    0
    In fact if you click on "Extra's" arrow at the top of the page and then on "energy calculator" you can play there for hours checking weights v speed v energy.
     
  7. stu s410

    stu s410 Engaging Member

    Messages:
    168
    Likes Received:
    0
    Location:
    Chertsey, Surrey
    Nice one Buzz!:)
     
  8. andyh

    andyh Engaging Member

    Messages:
    486
    Likes Received:
    0
    Location:
    Wycombe
    If you download Airgun 7.5.2 (which I uploaded to the downloads section), the program will give you data about various pellets and various rifles and different calibres. Now I tried a couple of different pellets through my Ultra and my chrono's readings were exactly what Airgun &etc gave back from it's calculations. The program also gives ft/lb readings etc.
    Tis a useful program that can also help you avoid pellets that will take your rifle over the 12ft/lb.
    My data showed that Gammo match gave 760 average fps and around the 9.5ft/lb. Usong Bisley Pest Control it was reading 790 fps just about 12ft/lb in power.
    Basically it just confirms Buzz's explanation which also shows that Buzz knows his onions.
    Hope that all makes sense :rolleyes:
     
  9. erifle

    erifle Active Member

    Messages:
    28
    Likes Received:
    2
    Pellet Weights and Velocity Spreadsheet

    Also a quick reference chart is available - click on "Pellet Weights and Velocity Spreadsheet" in the left hand menu http://www.erifle.co.uk
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice