Spin Drift As Well As Other Answers

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Boss Hoss, Feb 19, 2008.

  1. Boss Hoss

    Boss Hoss Well-Known Member

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    Hope this will help those who need it. If you understand this and use this it will help you win(thought twice about posting this but most BR guys won't see it lol)---not just at a match but in the field as well. Helps me every time I pull the trigger.. My Smith who is also a HOF shooter put this together. One of many neat tools he has put together to help folks out.. Don't bother calling the Shop as SG&Y is no more---he is now teaching the art at Trinidad.

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    Last edited: Feb 19, 2008
  2. royinidaho

    royinidaho Writers Guild

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    Good Post!

    It'll take a bit of studying but it looks like there is a pattern there. Not nearly what I expected but maybe that's that's to be expected..........from this falla's ole knoggin'.

    Roy
     

  3. Boss Hoss

    Boss Hoss Well-Known Member

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    Roy---if you will spend time to learn the relationships and develop the techniques you will be a much better shooter. Using this helped me win a 1k State Championship for score in 2006 when the winds were gusting between 15 and 30 mph. Actually set a range record that day for closest to the bull. As Speedy will tell you and I am a BIG BELIEVER in this as well ”the wind is your friend” and separates the true riflemen from the wannabes IMHO. When you are taking a shot albeit in the field or on the bench for all of the marbles giving the excuse that the wind was blowing and I did not know how to compensate correctly is no excuse.

    Personally I always hope for windy conditions at a match because it gives me an advantage over the others. Do get funny looks as most of the time I am the last one shooting in a relay and most just can’t figure it out. In the field it is much the same---over time you learn to judge tree, grass, mirage movement etc. practice makes perfect in this endeavor. I have traded rifles with my buddies before and out shot them in the wind using a factory rifle to prove the point.

    Hope this helps you-----I have the files if you want me to email them. Have some others on vertical stringing that are pretty helpful but Speedy has those already on BR Central.
     
  4. Augustus

    Augustus Well-Known Member

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    Yep Boss, spin drift is really a non-issue because it is so easy to fix, I hate the wind. It takes a long time to master it. How long? I dont know cause I aint gotter dun yet.
     
  5. Fiftydriver

    Fiftydriver <strong>Official LRH Sponsor</strong>

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    Now throw in multipule wind directions and it just makes you want to stay home and work in the shop!!!:D

    Thanks for posting this information. I do believe its the first time I have seen it in diagram form like this, much easier to understand.

    Kirby Allen(50)
     
  6. Captn C

    Captn C Well-Known Member

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    Thanks!

    That was great info for a beginner like my self.

    The humidity issue will be of great help for me here along the coast. We can go from 98% to 20% humidity from one day to the next. The temp can change as much too. They usually follow each other most of the time....90 degrees and the humidity will be in the high 90's and the next day following a front be 40 degrees and 20% humidity...then you have the gusty winds...:(

    OH! OMT-what the heck is the deal with the "speedy" pic...I am lost as to what all that is showing me???????????????
     
  7. Boss Hoss

    Boss Hoss Well-Known Member

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    Sorry the source document is only so clear and the scan made it worse! I have emailed everyone that sent me a PM the files plus a couple of extra ones as of right now. Anyone else let me know.

    Kind of funny once it is all laid out how easy it sounds--------it is not because it still takes practice and then more practice lol..

    Send me a PM with your number and I will explain but the post is not really clear enough to see the detail but all it is is a representation that illustrates that 1MOA is 1/60th of 1 degree.
     
    Last edited: Feb 19, 2008
  8. goodgrouper

    goodgrouper Well-Known Member

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    I have speedy's wind chart/bullet impact chart taped to my pedestal rest and use it for teaching others a lot. But in the real world of BR, seldom do you have a truly horizontal wind to the ground. There is almost always some component of vertical wind or thermal rise and it can be severe enough to overpower any horizontal wind. For instance, when shooting in a 3 oclock wind, it should push the bullet left and slightly up. But if the vertical component is half of the horizontal component, the bullet will most likely go left and lower. But it still helps to have a wind chart with you for those days when the wind does what it is supposed to!
     
  9. Boss Hoss

    Boss Hoss Well-Known Member

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    That is why you learn to read mirage and watch conditions very closely. You are always dealing with what you describe to a certain extent every time you shoot. Some ranges and some days it is worse than others but it is always present and must be dealt with however, by correctly reading the conditions you can pretty much mitigate what you are talking about. Speedy has taught me a lot about this specific part of the game and it helps me quite a bit.

    When I sit down to shoot a relay I do not even think about my equipment because I have already set the bags, rest, tracking etc. -------- only the condition.......... The other thing I learned from Speedy is what flag to watch..... He used to make quite a production of setting up his flags and a lot of that was for the benefit of his competition (mental games) and he is a short-range guy so he could place his own flags whereas in the 1k game we do not have that ability.
     
  10. eddybo

    eddybo Well-Known Member

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    It isnt the wind that troubles me so much......it is the darn let ups:mad: Good info here. I had something similar that some rimfire guys had given me....but alas it made its way into my reloading room never to be seen again. I sent you a PM and would appreciate any info that you do not mind passing along.
     
  11. Boss Hoss

    Boss Hoss Well-Known Member

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    Many of you have sent me requests for the files but did not provide an email addy..... Need that because the board function to send an email will not allow for file attachment.

    I have responded to everyone so far I think so if you did not get an email from me check youe PM box or just send me another request.

    Also if anyone wants to discuss just PM me a number and I will tell you what I know which is not much but I do know enough to be dangerous!! LOL!!!

    DWM
     
    Last edited: Feb 20, 2008
  12. goodgrouper

    goodgrouper Well-Known Member

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    The mirage boards can tell you about boils and downdrafts and help quite a bit. But then all of a sudden, a cloud covers the sun and mirage disappears but the downdrafts still remain. That is when you go to your sighter target and keep your eyes on the flags.

    Then your learning curve starts all over when you go to different parts of the country because mirage is NOT the same everywhere. Of course, we could spend days explaining this phenomenon! Thank goodness for a limitless sighter target!
     
  13. Boss Hoss

    Boss Hoss Well-Known Member

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    I only wish I had that ability shooting 1K in IBS as that is not an option!!
     
  14. goodgrouper

    goodgrouper Well-Known Member

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    Yes, 1k sighter is not limitless but that's also kind of what makes it fun. You have to take a sighter, see where it goes, then "man up" as my buddy says and start the group on the record.