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need help -22-250 wind drift and ballistics

Discussion in 'Shooting Related Threads' started by acss, Jan 27, 2013.

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  1. acss

    acss Well-Known Member Supporting Vendor

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    i need help with rifle shooting- i am a novice and dont know where to look or if i shud change anything--
    yesterday i tried a 22-250 target rifle -here are particulars

    distance to target 423 yards

    shooting down hill @ approx 30-45 degree slope

    wind is blowing right to left 10-12 mph

    shooting 55 grain bullet

    results --- 2 bullet group was 1in side by side

    they were 3inches high

    12 inches to left (same as wind direction)

    i shot one more time and it was 4in high but same 12in drift

    where do i find info to satisfy my curiosity on good or bad results?

    what is the drift at 10-12 mph?

    what effect is degree of slope?

    when this rifle shoots on flat ground-will it change verticle poi?

    wally riebesell
     
  2. CalvinMD

    CalvinMD Well-Known Member

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    Yes Wally with shooting downhill at such an angle gravity isn't nearly as influential on the bullet concerning elevation...uphill is the same...your gun will probably shoot 6-7" lower on flat ground...your wind drift is about right for the speed of the wind..in 10mph wind on any cartridge you can expect 2.5 to 3" per 100yds of drift..double the wind speed will double the drift
     
  3. CalvinMD

    CalvinMD Well-Known Member

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    The ballistic charts in the Nosler reloading manuals include wind drift
     
  4. Butler

    Butler TS Member

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    there are scopes made that have hold points for yardage and a 10mph crosswind
    there are range finders that will give u tru range no matter if uphill or downhill, all of these things cost a little bit of money, depends on how serious u get into it as to how much u want to spend Jim
     
  5. acss

    acss Well-Known Member Supporting Vendor

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    thanks for info-gees i'm green on this subject- i wish they wud have a made a 303 22-250 then i'd know!!!wally
     
  6. YOTESLAYER

    YOTESLAYER Member

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    Check out Nikons website, then go to there spot-on program. Ive found it to be very accurate!!!! And gives you wind drift and how many inches of drop for your exact hand loads and if you know your muzzle velocity you can enter all of the info you have. This is very accurate data and its free and easy to use!! Good luck!!!
     
  7. g7777777

    g7777777 TS Supporters TS Supporters

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    You need to know the exact bullet- not the weight== the ballistic coefficient is what the tables will require

    you might be amazed at the difference that different bullets make

    Regards from Iowa

    Gene
     
  8. Fhil Whiner

    Fhil Whiner TS Member

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    @ 45 degree angle the point of impact would be the same as 300 yards

    @ 30 degree angle it would be the same as 366 yards

    There are alot more questions that need answers. was the direction of the wind the same for the whole 400+ yards?

    Time of flight comes into play too. What was the velocity?

    Was the wind gusting? were the shots at the same gust speed?

    To many variables left that need info.
     
  9. steele

    steele TS Member

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    Try the above site. It will give you more info than you can understand. Just plug in the required data & it does all the calculations fro you.. Butch from Pgh
     
  10. acss

    acss Well-Known Member Supporting Vendor

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    and now i know -why i like shotguns-- thanks wally
     
  11. wayneo

    wayneo Active Member

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    Another good web site.,,,^^^^^

    Wayne
     
  12. halfmile

    halfmile Well-Known Member

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    JBM lets me choose my zero, gives max point blank range, energy, time of flight and a host of other stuff I don't need.

    You do need to plug in the BC and velocity so it can gie you the data.

    HM
     
  13. mooster1223

    mooster1223 Member

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    If you have a smart phone, buy the app named "shooter". You plug in your load info, bullet, velocity, barrel twist etc. and it will calculate the shooting solution for you. It also has a "slope function" that takes your shooting angle in to account.

    The 22-250 is a great long range cartridge if you build one with an 8 twist barrel. Allows you to shoot the 75gr Amax which will greatly help with wind deflection.
     
  14. acss

    acss Well-Known Member Supporting Vendor

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    thankyou-- i'm feeling like i am going back to school---wally
     
  15. YOTESLAYER

    YOTESLAYER Member

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    If Nikons spot on is to complicated for you I would reccomend finding the closest 5 year old to explain it to you, HAHA. It has every bullet made, listed by manufacturer, for your caliber, automatically enters your BC and with a few more entrys it is done, you can play with your wind speed and direction to show you how your bullet is affected. By far the easiest form of Ballistics reports ive ever used. This program also makes printable field charts and other charts for the data.
     
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