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  1. I

    Why do pellets "corkscrew" ?

    Spiraling at long range is because the translational velocity is slower than the rotational velocity, which does not slow down as much as the forward velocity, and past the apex, there is no upward component countering the downward gravitational force, only the gravitational component and the...
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    Optimal caliber for ELR?

    Consensus? I do not know, but the good => better => best caliber for extreme long range is the one with the biggest diameter because the bigger diameter, the heavier projectile you can fit, and said combination will give the biggest sectional density, and thus the form factor i in the Ballistic...
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    New - FX IMPACT M3 w/ POWER BLOCK, TUNGSTEN HAMMER, TENSIONED BARREL & MORE! -

    Wow! I say again... Wow! Makes my mouth water at the thought of a 22 caliber with an 800 mm barrel. I want to order one to be a 25 caliber (0.25" and not .25 cal, as that is less than the average human hair), with a 1,000 mm barrel, 1:26 inch twist, 26 degree crown, 0.25 inch throat before the...
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    I see a lot of FX Maverick's for sale

    JungleShooter, Any time you need help in looking at something, always look at it from someone else's point of view and it will either become totally confusing or clear as mud. The objective into understanding is to take the values one at a time, always label a number and write copius notes on...
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    I see a lot of FX Maverick's for sale

    Even hammers used as tools eventually fail, but what would you choose to use as a demolition hammer, the simple two part one, or the one that comes with an air condition cab? If the Maverick was improved upon as was the impact(s), there would be less sales because Maverick owners would only buy...
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    Internal and external ballistics spreadsheet

    Matthias, The coefficient of drag will be applicable to the projectile being studied as it will change with shape as it comes out of the muzzle. You could average it for a particular projectile coming out of the same barrel (caliber and type due to rifling lands and grooves width, depth, and...
  7. I

    Tuning M3 Help Needed

    Awesome! Amazing what two little spacers can cause so much preload. What Bar pressure did you settle at? How far from my 115 Bar? Lastly, do you get anywhere the 330 shots stated on many websites describing the 22 caliber FX Impulse M3? I'm thinking that marketing used the lightest pellet...
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    Tuning M3 Help Needed

    Marl3y, I forgot to mention the FX Impact M3 specifications, here they go: 0.177 35 fpe 375 shots 13,125 fpe total 4.9 fpe/gr. air 0.22 79 fpe 330 shots 26,070 fpe total 9.8 fpe/gr. air 0.25 89 fpe 160 shots 14,240 fpe total 5.353 fpe/gr. air 0.30 124 fpe 105...
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    Tuning M3 Help Needed

    Marl3y, I have a different take on looking at this situation, but first, I need you to fill your gun tank to capacity and write down the pressure, then start taking shots without valve spring, hammer spring, Macro/micro and write down the tank pressure drop at each shot or group of shots until...
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    JSAR .257 HP Raptor Arrived

    Not to burst your bubble, but you cannot get an orange out of an apple, no matter how hard you squeeze. The laws of physics are not just really good ideas, and numbers do not lie, but you can lie with numbers. Since I failed mind reading 1-0-1, and I took it twice, let me begin with what is...
  11. I

    FX taking over the market?

    I hope FX takes over the market because I am waiting for an air gun to shoot 1,000 per fill, have a 100 cc bottle for light weight, 1M Bar, and sling pellets in the hyper velocity range that won't slow down to the transonic range at less than 1,000 yards. with a 10 dB report at the muzzle and...
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    Internal and external ballistics spreadsheet

    wow! Cool spread sheet. What software language did you use to write it up? Is it Open Source so we can fine tune it to our specific guns such as caliber, pellet/slug mass, barrel length, transfer port diameter, regulator valve orifice area, barrel number of lands and grooves and their depth...
  13. I

    WIN a Daystate Red Wolf .177 HP PCP and More!!

    Nice! 9876.54
  14. I

    Daystate Huntsman - Looking for hammer spring rate

    30 fpe from an 18.1 gr pellet has 864 fps +/- 14 fps per +/- 1fpe Photobucket is unavailable, so if you could please type in the hammer spring Free Length, Outside diameter, Wire diameter and the number of Total coils; also the hammer spring adjustment screw threads per inch, or mm pitch, and...
  15. I

    NEW Air Venturi Avenger Regulated PCP - Ultimate Owner/Tuning Guide!!

    888.58 What isthe regulater pitch threads on the screw? How big is the plenum and transfer port? Shoots fast and hits hard is not good enough. Thank you and love the videos
  16. I

    Full specifications on the Avenger

    Can't wait for the description and total specifications. 888.58
  17. I

    Barrel length, Velocity, and Muzzel Breaks

    It appears that by using the 14.6 inch barrel from the 18 inch barrel you'll be sacrificing approximately 61.862 feet per second (fps). 62 fps may not sound like much, BUT! the 62 fps loss is at the high end of the velocity curve, which means that you will be sacrificing a lot of foot pound...
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    WIN an FX Dreamline and more!!

    1234.56 i want the biggest caliber, with the longest barrel and I'll pay the difference.