FX reveals the "Crown" and the Smooth Twist "X" barrel system!

Forums PCP Airguns FX reveals the "Crown" and the Smooth Twist "X" barrel system!

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    chasdicapua
    Participant
    Member

    I’m not the biggest fan of bottle guns. The gun shown at the show looks just like a Royale 400. I would love to see FX offer this in the Royale 300 stock. It has more traditional lines. Man, that would be, to me, an ultimate air gun. FX, I hope you are reading this. 

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    weatherby
    Participant
    Member

    Had a very nice chat with Fredrik, Matt and Ted today at IWA about the new Crown and FX in general :)
    Fantastic guys with endless enthusiasm about airguns, just like most of us.
    Made some pics too, thought you guys would likely be very interested in them as well :)

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    Yrrah
    Participant
    Member

    “zebra”

     


    Does that mean the new barrels are rifled over the whole length instead of just the last inch like the regular ST barrels? 

    If it does mean that, I’d love to hear from FX what the thinking is behind the change. I know the LW polygon barrels are the latest fashion in certain circles but it would be great to see if FX’s testing found a meaningful advantage over traditional rifling and their ST design.  

     

    Zebra,
    Yes the rifling is full length of barrel.

    Some explanation:  Because of differences in weight and velocity and therefore momentum, different pellets skid through original ST “rifling” to leave the barrel at different spin rates. None conform to the actual barrel rifling which is 1:16″. In the original research done by Dan Brown and myself, we measured spin rates between 1:64 and 1:160 with different wt pellets and calibres.
    When Fredrik himself then repeated our tests he observed 1:44 approx. All from 1:16 barrels.
    Now the new STX barrel liners with full length ST rifling will result in all pellets leaving the barrel at the barrel’s twist rate regardless of pellet dimensions,  as is the case with ordinary barrels. 
    OK so what is the advantage gained?  We should be able to select a liner that optimizes pellet spin rate for best accuracy for that pellet and possibly those of somewhat similar weight, length and design.  Think what is the case with your centre fire rifles which long ago optimized twist rates from 1:14 to 1:7 depending on bullet dimensions, profile and wt.   Other air rifle makers are not producing barrels with a selection of twist rates and if they did, you would be up for the cost of each complete new barrel.

    FX has optimized the normal .22 ST barrel for best accuracy with 18.1 gr Heavy JSB Exacts. They shoot other quality pellets very well too, 15.9 gr JSB, Baracuda H&N,  Eunjin etc. But optimized for the JSB Heavies.  Now when I get an FX Crown I will be able to optimize for my favourites  including Polymags, and Piledrivers with their  extraordinary long range ballistic coefficient.
    This is exciting as I may have only a few years of shooting left – turned 80 yr a week ago! …
    I hope this makes some sense.  … Best regards, Harry.
     

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    Yrrah
    Participant
    Member

    Weatherby,
    Thank you for the wonderful pics.
    If you again speak with Fredrik and Ted, please give them my best regards. 
    Harry.
     

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    jlc
    Participant
    Member

    Thanks for the info Harry and a belated Happy Birthday, I’ll be 71 in two weeks, but none of us know the future, i hope you have many more years of shooting enjoyment..

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    aa_limited
    Participant
    Member

    I’m in my 40s and it seems air guns are only now getting started. the crown will be my next rifle

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    dreuf
    Participant
    Member

    Go to min 22 and you will see how the barrel swap works. It is pretty fast and simple.

    You will also get a quick exchange between EDGUN and FX boss.

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    aa_limited
    Participant
    Member

    I’m going to sell my daystate air wolf to fund this one. yes there will be a crown in my future..hmm possibly?

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    T3PRanch
    Participant
    Member

    If the new barrel will handle lead slugs (ie my hand cast bullets) then I will be ecstatically happy since all their past guns were geared  towards commercial pellet offerings.

    Thurmond

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    aa_limited
    Participant
    Member

    I’m going to have to see this guns accuracy Iin the flesh and in reviews
    before I put my money down on one thou.. any one else feel the same way?

    ​as a solid barrel with no liners and screws with be more accurate than a  liner tube with screws and liners right… yes

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    Mousefart
    Participant
    Member

    I think I will save myself some effort if I ignore this thread and all of the guessersizes for at least, say, 6 months. Time enough for them get delivered into the hands of real users, get debugged etc. THEN if all of the hype converts to reality maybe I can get excited about adding one to the collection a year from now. My best wishes to the early adopters who will lead the way!

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    zebra
    Participant
    Member

    “Yrrah”

    “zebra”

     


    Does that mean the new barrels are rifled over the whole length instead of just the last inch like the regular ST barrels? 

    If it does mean that, I’d love to hear from FX what the thinking is behind the change. I know the LW polygon barrels are the latest fashion in certain circles but it would be great to see if FX’s testing found a meaningful advantage over traditional rifling and their ST design.  

     

    Zebra,
    Yes the rifling is full length of barrel.

    Some explanation:  Because of differences in weight and velocity and therefore momentum, different pellets skid through original ST “rifling” to leave the barrel at different spin rates. None conform to the actual barrel rifling which is 1:16″. In the original research done by Dan Brown and myself, we measured spin rates between 1:64 and 1:160 with different wt pellets and calibres.
    When Fredrik himself then repeated our tests he observed 1:44 approx. All from 1:16 barrels.
    Now the new STX barrel liners with full length ST rifling will result in all pellets leaving the barrel at the barrel’s twist rate regardless of pellet dimensions,  as is the case with ordinary barrels. 
    OK so what is the advantage gained?  We should be able to select a liner that optimizes pellet spin rate for best accuracy for that pellet and possibly those of somewhat similar weight, length and design.  Think what is the case with your centre fire rifles which long ago optimized twist rates from 1:14 to 1:7 depending on bullet dimensions, profile and wt.   Other air rifle makers are not producing barrels with a selection of twist rates and if they did, you would be up for the cost of each complete new barrel.

    FX has optimized the normal .22 ST barrel for best accuracy with 18.1 gr Heavy JSB Exacts. They shoot other quality pellets very well too, 15.9 gr JSB, Baracuda H&N,  Eunjin etc. But optimized for the JSB Heavies.  Now when I get an FX Crown I will be able to optimize for my favourites  including Polymags, and Piledrivers with their  extraordinary long range ballistic coefficient.
    This is exciting as I may have only a few years of shooting left – turned 80 yr a week ago! …
    I hope this makes some sense.  … Best regards, Harry.
     


    It makes sense to me. 

    I can think of one additional potential benefit that would be at least as important (if not more) for me. If you happened to get unlucky by receiving one of the less accurate barrels (all guns come in a range of accuracy), it would be easier to switch it out for a more accurate one. It  reduces the risk on an expensive purchase a little. 

    Obviously you can pay to get a new barrel blank machined for any gun but it’s such a PITA as well as being expensive and time consuming for air guns. 

    I am intrigued by the potential to tailor twist rates for the pellet although it’s just marketing speak until we see it in practice. 

    I haven’t see any test results showing that the best twist rate for a JSB 25gr is x while an H&N Barracuda needs a twist rate of Y to be optimal. That sort of testing seems beyond the resources of most of us. Even if I had two barrels with different twist rates, I wouldn’t know if the more accurate one was due to the tr or it was just a better barrel sample. I would need help to be able to benefit from this feature.

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    Widget23
    Participant
    Member

    I am anxiously waiting for the delivery of the new Crowns.  It has the possibility of replacing my Royale 500 (in .25). 
    The features it has are exciting.  If it brings more accuracy to the table – I’m in!

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    LDM
    Participant
    Member

    One of my early “high-end” guns was a .22 Royale, unregulated. Loved it, but it was loud! I hope this gun’s shroud doesn’t need add on sections to quiet it down. Looks great though!

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    LDM
    Participant
    Member

    Just remembered that my avaitar photo was a 50 yard group from my .22 Royale. And I was a newbe when I owned it. 

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    Yrrah
    Participant
    Member

    “aa_limited”hmm mabe a take out choke for the twist or rotate the barrel?
    ​ or interchange a barrel. if twist is due to barrel change.. it will cost us 500 bucks to do it.
    crazy hey

    
aa_limited:
    The exchange barrels are liners for the main barrel.
    Looks as though you could get 5 different liners for your price estimate of one. $99 has been mentioned.

    This is a real move forward and if it proves out, I predict Daystate, AA and other top makers will be attempting something similar;  or making spare barrels with twist rates copied from FX after FX has already optimized for our best few pellets of various weights. Cheaper competitive barrels may be the outcome.
    I have not acquired a new rifle in over 4 years as I already have   the most accurate ones, excepting a Thomas.
    I will get a Crown .  … Kind regards, Harry in OZ.
     

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    Wingman
    Affiliate
    Affiliate

    A few more pics of the new FX Crown at IWA for you guys. 
    Personally theres a few things I dont like.. the over sized 18 shot magazine is one.. Why.. just why? I sure hope there is a smaller one to fit or a single shot tray. It is just way too big for many reasons. The height alone means you cant fit low rings to keep your scope centered close to the bore line.. cheek placement with a scope that high would simply be wrong unless you opt for the “Optional adjustable cheek piece” and finding quality super high scope rings to fit that 11mm dovetail would be a challenge, its a good thing that the FX also make those massively over height Zero Limit rings huh?  
    What does all this mean? Loads more $$$  in FXs pocket after the initial rifle purchase.. and dont forget the optional “match trigger”… dont you feel a $1900 should already have a match trigger?  All very clever up selling marketing on FXs behalf but I’ll pass thanks.

    All be it a very pretty little rifle, unless it fits a smaller mag that doesnt require a ridiculously high scope fitment and over extended cheek piece, I would rather a different platform to test the new X barrel so I sure hope they extend that across the FX range. 





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    AirSupply
    Participant
    Member

    The barrel in the video looks the same as an impact barrel. I mean around the air port and the diameter 
    looks similar. No one has said yet if there interchangeable.  Was thinking if I where to buy a crown and I have an impact I could end up with a bullpup
    hunting rifle and a traditional rifle. A new calibre for the impact. I suppose if you can swap you could do it
    both ways as my .22 impact barrel is very accurate it could go on the crown. I’d have a second carbon 
    bottle if I planned a day hunting. Also the magazine looks the same that would be a bonus. If I where to 
    buy for my impact a new barrel kit, second carbon bottle and another magazine it would be around 
    $1000 bucks. So it’s a cheap gun. 
    Talking myself into it slowly….

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    AirSupply
    Participant
    Member

    When looking hard at the video the thing I can’t see is the fixing hole drilled in the barrel. And I can’t see the 
    fixing screw on the outside of the breach. Maybe they didn’t have the depth of metal with the liner 
    to do it that way. Maybe they have just come up with something better. If anyone has the answers would 
    love to know. 

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    Shelby78
    Participant
    Member

    Not sure if it has been mentioned but I wonder how awkward it is to cock? Does not look like a gun to use with gloves on in the winter. The mag blocks some of the lever and its recessed into the stock where its exposed. It may be better in real life as I am only going by pictures.

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