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Is this pistol under the 1J limit??

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  • 04-04-2009 6:49pm
    #1
    TunnelWeb
    Closed Accounts Posts: 176 ✭✭


    Hey all,

    I saw a series 7 gbb M9 online from a place in china and was just wondering is it under the 1J limit or not? It gives the fps on it as 345 fps.I dont really have a clue about fps and all that so I don't know if this is under 1J.:confused:
    Can anyone help me out?
    Thanks.
    Tagged:


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    #2
    José Alaninho
    Registered Users Posts: 1,041 ✭✭✭José Alaninho


    TunnelWeb wrote: »
    Hey all,

    I saw a series 7 gbb M9 online from a place in china and was just wondering is it under the 1J limit or not? It gives the fps on it as 345 fps.I dont really have a clue about fps and all that so I don't know if this is under 1J.:confused:
    Can anyone help me out?
    Thanks.

    1J is 328 fps, so......


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    #3
    Flecktarn
    Registered Users Posts: 1,916 ✭✭✭Flecktarn


    1 Joule=328 fps

    Its over the limit

    Damn you José,beat me to it!


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    #4
    The Master
    Moderators, Category Moderators, Music Moderators Posts: 14,316 CMod ✭✭✭✭The Master


    Do you have a link to the site?

    345fps would be over the limit(if it's with .2 bbs)


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    #5
    The Master
    Moderators, Category Moderators, Music Moderators Posts: 14,316 CMod ✭✭✭✭The Master


    Mr_Kuthar wrote: »
    1 Joule=328 fps

    Its over the limit
    José Alaninho wrote: »
    1J is 328 fps, so......

    No, 1 joule = 328fps with .2g bbs

    http://www.boards.ie/vbulletin/showthread.php?t=2055353665


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    #6
    Flecktarn
    Registered Users Posts: 1,916 ✭✭✭Flecktarn


    The Master wrote: »
    No, 1 joule = 328fps with .2g bbs

    I stand corrected


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    #7
    The Master
    Moderators, Category Moderators, Music Moderators Posts: 14,316 CMod ✭✭✭✭The Master


    A common misconception made by many people.

    I've linked to the sticky on this, well worth a read;)


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    #8
    TunnelWeb
    Closed Accounts Posts: 176 ✭✭TunnelWeb


    M You wanted the link? Here it is http://shop.ehobbyasia.com/ksc-m9-hardkick-full-metal-gbb-pistol-system7.html
    So It's over the limit yeah? ah poo....:(


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    #9
    Dread-Lock
    Registered Users Posts: 1,893 ✭✭✭Dread-Lock


    TunnelWeb your in luck as Airsoft Eire will be getting that GBB in soon.

    Read the top line:
    http://boards.ie/vbulletin/showpost.php?p=59662023&postcount=655


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    #10
    Craigsy
    Closed Accounts Posts: 611 ✭✭✭Craigsy


    Dont gbb and aegs from asia get stopped in Heathrow anyway, regardless of limits?


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    #11
    Dread-Lock
    Registered Users Posts: 1,893 ✭✭✭Dread-Lock


    Craigsy wrote: »
    Dont gbb and aegs from asia get stopped in Heathrow anyway, regardless of limits?

    Yeah sure, if they go through Heathrow...


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    #12
    cherubaul
    Closed Accounts Posts: 245 ✭✭cherubaul


    the answer is no. That pistol is fine you will have n o problems with it in this country.
    the cold weather over here means you will be lucky to get 310fps out of KSC most days. yes some very sweltering days in summer you might and i stress might not be able to use it but you will have no problems with the chronograph if you are getting one.


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    #13
    TunnelWeb
    Closed Accounts Posts: 176 ✭✭TunnelWeb


    cherubaul wrote: »
    the answer is no. That pistol is fine you will have n o problems with it in this country.
    the cold weather over here means you will be lucky to get 310fps out of KSC most days. yes some very sweltering days in summer you might and i stress might not be able to use it but you will have no problems with the chronograph if you are getting one.

    So it IS ok to buy?? Customs wont have problems with it etc?

    Heh,im confused again now....:confused:


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    #14
    spicymchaggis
    Registered Users Posts: 2,873 ✭✭✭spicymchaggis


    well its still over the limit with 134a gas and it would be well over with green gas, you would have to then pay to have it downgraded. best bet is contact an irish store and see if they can get you one


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    #15
    TunnelWeb
    Closed Accounts Posts: 176 ✭✭TunnelWeb


    spicymchaggis wrote: »
    best bet is contact an irish store and see if they can get you one

    Yeah,seems like the best option.Thanks


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    #16
    a x e 15
    Registered Users Posts: 31 ✭a x e 15


    cherubaul wrote: »
    the answer is no. That pistol is fine you will have n o problems with it in this country.
    the cold weather over here means you will be lucky to get 310fps out of KSC most days. yes some very sweltering days in summer you might and i stress might not be able to use it but you will have no problems with the chronograph if you are getting one.

    ive been doing some digging and have found something intreasting ....
    theres a professor who has been studying the whole joule and fps thing and has discovered that it is all down to the projectile's power on impact and not really the fps of the gun, personally im still slightle confused but i just thought id mention it ..... (and im not sure how credible this all is by the way) ...

    ILLEGITIMI NON CARBORUNDUM


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    #17
    Single Malt
    Closed Accounts Posts: 440 ✭✭Single Malt


    The 1J thing still fully holds up. 1J is the maximum energy a bb can have as it exits the muzzle. This is also the point at which the bb has the most ability to do work (power). The power on impact will always be less, as nobody will shoot someone at absolute point blank range. Axe15, don't dig up irrelevant **** (also known as trolling) in an attempt to cause a panic to our less informed members.


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    #18
    The Master
    Moderators, Category Moderators, Music Moderators Posts: 14,316 CMod ✭✭✭✭The Master


    Axe15, don't dig up irrelevant **** (also known as trolling) in an attempt to cause a panic to our less informed members.

    Please do not back seat mod like this.

    If you see a problem with a post please use the report post button


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    #19
    Stercus Accidit
    Registered Users Posts: 8,758 ✭✭✭Stercus Accidit


    a x e 15 wrote: »
    ive been doing some digging and have found something intreasting ....
    theres a professor who has been studying the whole joule and fps thing and has discovered that it is all down to the projectile's power on impact and not really the fps of the gun, personally im still slightle confused but i just thought id mention it ..... (and im not sure how credible this all is by the way) ...

    ILLEGITIMI NON CARBORUNDUM

    Fascinating, was it professor wheeto by any chance?

    Because irish law defines a firearm by its muzzle energy, hence we calculate muzzle energy by testing velocity at the muzzle, and calculating the energy with the known weight of the projectile.

    Kinetic energy in joules = M/2 (half the mass in kilograms) multiplied by V2 (velocity in metres per second squared)

    That can be used to show that a .2g bb at 100m/s (approx 328 fps) has 1 joule of energy.


    Tell professor wheeto his cereal is delicious, but his knowledge or Irish law leaves a lot to be desired.


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    #20
    The Master
    Moderators, Category Moderators, Music Moderators Posts: 14,316 CMod ✭✭✭✭The Master


    Lads lets drop this please, the op was asking about one item in paticular.

    As Sam has said the law is very clear on this.


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