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Thread: bullet weight vs wind

  1. #1

    bullet weight vs wind

    lighter bullets are affected by wind more than heavier bullets, so do you use different weights for different conditions or try and guess the windage or just dont go shooting if its windy???

    Is there a good weight which is still fast and flat but not so badly affected by the wind?

    I was plinking on my hill farm on Sunday and noticed quite a difference between 200m and 300m using 50gr 22-250 rounds.

  2. #2
    Wind is a bitch isn't she ! Honestly the best thing you can do find a bullet that works well in your rifle then work on your wind judging skills ?

  3. #3
    Under 250 yards the wind will not in most cases make a huge difference, an inch or two perhaps unless it is really blowing hard. Beyond 250 yards and shooting accurately becomes all about judging wind and range as accurately as possible. Saying that your 22 cf rounds will get blown around more than my 168 grain 7mm matchkings. All you can do is choose a heavier and more aerodynamic bullet if your rifle will stabilise them. Otherwise get a bigger rifle!

  4. #4
    cant comment on the 22-250
    but I try to use the heaviest bullet possible in the .222
    I have moved to 52g Amax over 50gr Vmax (and either of those over 40gr)
    and I have just sourced some 55gr Nosler BT's for when the Amax dry up

    you can account for drop much more easily than wind

  5. #5
    Quote Originally Posted by bewsher500 View Post

    you can account for drop much more easily than wind
    +1

    range/drops can easily be accounted for, laser rangefinders, dope cards, ballistic calculators.
    But even with an anemometer, you only get the wind at your position, yes it helps, but judging the wind is the hardest part of longer range shooting, any competent person should be able to pull a 8" group at 1000yds in still conditions, even when there is a consistent wind, but it takes some good wind reading skills to do that on the average 'blowy' day.

    As bewsher says, you can account for drop,
    wind takes skill, skill takes practice, and a heavy bullet to increase your odds

    regards
    Pete

  6. #6
    On a rifle range it is normal to have flags flying, not just to warn folks that shooting is happening but to help to gauge wind strength and direction.The longer a bullet is in flight in a side wind then that wind will push it off line i.e. at 100 yds flight time with your .22/250 at 400 ft/sec will be very short,but at 300 yds much longer as the bullet slows .Light bullets slow quickly ,Heavier ,more streamlined bullets ( high ballistic coefficient ) keep initial velocity much better so that at 300 yds it's flight time might be the same as your 22/250 but beyond that the difference will be much greater . Heavy streamlined bullets go faster longer than short stumpy light ones .

  7. #7
    Quote Originally Posted by waterford103 View Post
    On a rifle range it is normal to have flags flying, not just to warn folks that shooting is happening but to help to gauge wind strength and direction.The longer a bullet is in flight in a side wind then that wind will push it off line i.e. at 100 yds flight time with your .22/250 at 400 ft/sec will be very short,but at 300 yds much longer as the bullet slows .Light bullets slow quickly ,Heavier ,more streamlined bullets ( high ballistic coefficient ) keep initial velocity much better so that at 300 yds it's flight time might be the same as your 22/250 but beyond that the difference will be much greater . Heavy streamlined bullets go faster longer than short stumpy light ones .
    Red flags indicate range in use, red/white indicate limits of arc (ie when doing cross lane practices) blue/yellow are the wind flags, but not on my range, unless asked for, they stay packed away lol.
    Pete

  8. #8
    going to see what slightly heavier bullets fly like in a wind , otherwise I might aswell use use the bigger rifle.

  9. #9
    So, out with the trusty Sierra Infinity Suite (Ideal for armchair shooting...)
    22-250 running a "Sierra" max load...10 mph wind from 3 o'clock
    .224 dia. 40 gr. BlitzKing at 4200 Feet per Second, drift at 300 yards 11.05 inches
    .224 dia. 50 gr. BlitzKing at 3800 Feet per Second, drift at 300 yards 9.23 inches
    .224 dia. 69 gr. HPBT MatchKing at 3250 Feet per Second, drift at 300 yards 8.88 inches

    Something more extreme?
    243 Winchester running a "Sierra" max load...10 mph wind from 3 o'clock
    55 gr. BlitzKing at 3600 Feet per Second drift at 300 yards 11.27 inches
    107 gr. HPBT MatchKing at 2900 Feet per Second, drift at 300 yards 5.57 inches

  10. #10
    Quote Originally Posted by Barkingsnake View Post
    So, out with the trusty Sierra Infinity Suite (Ideal for armchair shooting...)
    22-250 running a "Sierra" max load...10 mph wind from 3 o'clock
    .224 dia. 40 gr. BlitzKing at 4200 Feet per Second, drift at 300 yards 11.05 inches
    .224 dia. 50 gr. BlitzKing at 3800 Feet per Second, drift at 300 yards 9.23 inches
    .224 dia. 69 gr. HPBT MatchKing at 3250 Feet per Second, drift at 300 yards 8.88 inches

    Something more extreme?
    243 Winchester running a "Sierra" max load...10 mph wind from 3 o'clock
    55 gr. BlitzKing at 3600 Feet per Second drift at 300 yards 11.27 inches
    107 gr. HPBT MatchKing at 2900 Feet per Second, drift at 300 yards 5.57 inches

    Ouch, that is extreme. 107gr smk's, I'd like to see a standard 1-10" twist .243 stabilise them. But yes, it does prove a point, what does it say for a .308, 175gr smk at 2700fps out of interest ?

    Regards
    Pete

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