Is the Hornady 4 DOF's only use as a comedic tool?

Jayhawkhuntclub

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Maybe it's me, but this is the magic 8 ball of ballistic calculators. I really like the set up, but as for it's predictions... Well I might as well just guess.
Wish I knew what I was doing wrong.
 

gnochi

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I’ve had similar experience with 4dof. Probably user error, but you’d think if I’m using Hornady off-the-shelf it’d be in the right ballpark without fiddling with anything.
 

DocRDS

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It would probably help to be more descriptive as to what errors you are encountering.

Like my shots are too low at 600 and too high at 800.
 
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Jayhawkhuntclub

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I haven't kept a log of the errors. General it's simply that the adjustments in mils are wrong. Always optimistic. Not saying that's the only problem, but that's the key one.
 

BLKWLFK9

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    basically, you need all the required info on building the profile and a velocity. You true your drop to 500-600 by changing your velocity, then 800-1k by using the form factor funciton, assuming your bullet is in the library. Otherwise, you play with your BC at 800-1k to true/tune it. Its very simple but its one of those things where if you put bad info in, your correction will be wrong. Thats true for any calculator
     

    DocRDS

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    I will give that a try.
    The velocities I put in are from my magnetospeed. I would think they would be fairly accurate.
    Thanks for the help.
    As I understand, velocity in a Ballistic Calculator is a tuning parameter not an input. What you are trying to do is match the prediction from the calculator to reality.

    AS mentioned before (and by others much more skilled than me), you adjust the velocity to true your hits at 800 yards and in, and your BC/Form Factor for 800+. In other words if your hits are 2 mils low at 600, adjust the velocity so 4DOF gives you a solution that matches where you actually hit.

    Your measured velocity from the Lab Radar is only a starting point, the real goal is to match 4DOF out to your hits.
     
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    lowlight

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    It was really good,

    I honestly think they "updated" out of usefulness

    We were using it to great success in classes, then an update happened broke every track including my own and aligning it was even harder after ...

    I think part of it is the barrel angle thing ... I have to agree something changed with it, and it's not the same anymore.

    I went back to AB and now that the Garmin is out, using that, but I have the 4DOF Kestrel and it's basically been retired for the last 9 months at least. I did like it initially but they broke it
     
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    DocRDS

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    It was really good,

    I honestly think they "updated" out of usefulness

    We were using it to great success in classes, then an update happened broke every track including my own and aligning it was even harder after ...

    I think part of it is the barrel angle thing ... I have to agree something changed with it, and it's not the same anymore.

    I went back to AB and now that the Garmin is out, using that, but I have the 4DOF Kestrel and it's basically been retired for the last 9 months at least. I did like it initially but they broke it
    Hey Boss, what is this Garmin thing you speak of...I'm still stuck in the world of Kestrels

    QUick google-fu something like this? https://buy.garmin.com/en-US/US/p/583825
     

    kyzim311

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    I have had great luck with the 4DOF calculator, but you have to enter everything in correctly to get the right answer. Station pressure, altitude, temperature, humidity, muzzle velocity, scope height over bore, barrel twist, shooting angle, firing azimuth and latitude all need checked (last two are more important as you get closer and past 1000 yards). If all of those inputs are correct, then tune your axial form factor at 3-800 yards.
     

    CNC-Dude

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    From the Hornady videos they say it's only guaranteed to get you on target with the first shot. It's done that for me at different shooting facilities at different altitudes as well as weather conditions and distances. If your looking for it to get you from bullseye to bullseye at different distances and other conditions, you may have your expectations too high.
     

    Texasflyer

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    Slides

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    Using bore to scope height, velocity data from zeroing and appropriate atmospheric pressure and temp for the conditions I was often only a couple of clicks off out to 900 yards using Hornady American gunner in 6.5cm just off the website. Can't really complain about that?
     

    Yoteski

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    My 4dof kestrel still gives fantastic firing solutions using Hornady bullets. I haven't used the app in forever. I wish they'd try and update their library a little more often.
     

    8pointer

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    I'm about to delete Hornady at this point. So, for an iphoner wanting to use a phone based approach...for those who have used both which one did you settle on Strelok or AB? Thanks
     

    8pointer

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    AB is spot on for all my weapon /cartridge combos.
    When I buy that app does it have a library that adds all the data for the bullet? I was playing with their web page bullet library and selected a bullet and it didn't load anything in teh fields. MIght be my browser or something, but seems a bit weird to have a bullet in the 'library' and then I have to go to the Hornady site and look for BCs and whatnot. I'm sure it was just my browser.

     

    BLKWLFK9

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    Yall wait until @THEIS s' app drops. Its about to fuck up everything on the market. My only complaint is, i wish it was in a stand alone unit with a wind meter like a kestrel.
     
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    Bandit320

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    When I buy that app does it have a library that adds all the data for the bullet? I was playing with their web page bullet library and selected a bullet and it didn't load anything in teh fields. MIght be my browser or something, but seems a bit weird to have a bullet in the 'library' and then I have to go to the Hornady site and look for BCs and whatnot. I'm sure it was just my browser.


    They have a large library that comes with the app that has the BCs for most bullets. They also have custom drag models that you can purchase for some bullets that they have tested. I think the organization of the menu’s are a bit akward but the output has always been right on.
     
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    lash

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    When I buy that app does it have a library that adds all the data for the bullet? I was playing with their web page bullet library and selected a bullet and it didn't load anything in teh fields. MIght be my browser or something, but seems a bit weird to have a bullet in the 'library' and then I have to go to the Hornady site and look for BCs and whatnot. I'm sure it was just my browser.

    The BCs are in the app for most ballets commonly used and many that are not that common.
     
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    8pointer

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    Yall wait until @THEIS s' app drops. Its about to fuck up everything on the market. My only complaint is, i wish it was in a stand alone unit with a wind meter like a kestrel.
    Ahh very good I forgot about that. Any idea or dates on release?
     

    Punkur67

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    I really struggled with getting my dope right on the Hornady app. I was way high past 1k. I went to the Kestrel and was right on target. I quit trying with Hornady after my Kestrel results.

    I actually started messing with it again recently because I want a phone app as a backup in case I have issues with the Kestrel at the range. I plan to play with Ballistic Arc, TRASOL, and Hornady to see what one works best for me as a backup.
     

    THEIS

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  • Its in the short rows. Shouldn't be long. Maybe @THEIS can give some updated info.

    Hi,

    Android version soon soon soon (iOS shortly after----Staggered rollout for sake of learning curve on our end, lol)...exact date is trying to be pinned down now but few things are not at my control such as Google Developer account verifying and validating the bank account attached to the app profile.

    Sincerely,
    Theis
     

    Long Range 338

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    From the Hornady videos they say it's only guaranteed to get you on target with the first shot. It's done that for me at different shooting facilities at different altitudes as well as weather conditions and distances. If your looking for it to get you from bullseye to bullseye at different distances and other conditions, you may have your expectations too high.

    WTF? What is it that a ballistic calculator does??? If I get good data for the first shot wouldn’t it be good for successive shots?
     

    Long Range 338

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    The 4DOF program has been money in the past but they have broken it a couple times with updates... last fall it was working great but was giving me some junk last week. Also the bc calculator is a waste of time, the only reason to use 4DOF is if they have the Doppler data for your bullet. If not, use something else as it’s just frustrating. Sad because it really showed promise after the initial release.
     

    TripleBull

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    "Is the Hornady 4 DOF's only use as a comedic tool?"​


    lethalweapon03.jpg


    Works great for me.