It's hard enough when they're all going the same direction and you're shooting at a leisurely pace!I agree with this because higher velocity with a given bullet will have more drag...and drag is what moves the bullet.
Now, calculate all that when the flags are all going different directions and the clock is running. Lol!
This is exactly what a ballistics calculator will tell you. They're very helpful as learning tools. Less so at making real life wind predictions.Ok let’s say to make it simple:
your shooting a 6mm 107 grain with a muzzle velocity 3000fps @1000 yards and you have a consistent true cross wind of 10 mph the full length going right to left
how much would that wind move the bullet to the left @ the target?
Like Damon said, that's exactly what most any ballistics program assumes and what they will tell you. Problem is, that's not realistic most of the time, to expect a constant wind value for the entire way to the target....even at 100 yards and far less at 1000. It's why bc is important as distance increases too. IME, short, dumpy, low bc bullets almost always outshoot long, high bc bullets...in PERFECT conditions. I'm not sure perfect conditions at 1000 even exist anywhere other than in ballistics programs. Lol!Ok let’s say to make it simple:
your shooting a 6mm 107 grain with a muzzle velocity 3000fps @1000 yards and you have a consistent true cross wind of 10 mph the full length going right to left
how much would that wind move the bullet to the left @ the target?
An old 1000 yard benchrest told me when I first started shooting 1000 yard benchrest “ sun up, bullet up, sun down, bullet bullet down”.Some other things to consider:
The wind closer to the shooter counts more at full value but less and less as the angle changes toward a head or tail wind on the bullet.
Spin drift will cause a left to right wind to increase the height of the bullet and vice versa.
There is a point where angle is more important than speed and vice versa depending on the wind speed.
Wind blows the scope image which must also be factored into the equation.
The sun will also draw the image towards it. As the sun comes over the target, the image rises. Clouds have the opposite effect.
It's a starting place.Well if I punched it in right it said 8.8 MOA does that sound right?
I would probably hold on the right of 10 ring? But I’m here to learnIt's a starting place.
Hypothetically, lets say the first third of the distance is equal to the last two thirds. Now lets also assume we have a 10mph l-r wind for the first third and a 10mph r-l for the 2nd 2/3rds. Now, would you hold in the middle?
For all intents and purposes here, a bullet doesn't move sideways unless acted upon. A wind at the first "flag" and zero wind the rest of the way will move the bullet essentially like this
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The only force still at play after the bullet leaves the cross wind is lateral inertia. For a 10mph wind, that would be worth about 14.6fps opposed to roughly 3000fps of forward inertia. Yes, it will have a new course to it's new poi but I can't see how it will maintain an angular trajectory after the force of wind is no longer acting on it. If you've shot over flags much, you know that it's very common to have several flags going in different directions at the same time and that a steady crosswind is much easier to shoot predictably. So yes, if the bullet is subjected to a steady crosswind for it's entire flight, it may appear angular or curved in it's trajectory,
It didn't draw like I intended but I think it's good enough.
For all intents and purposes here, a bullet doesn't move sideways unless acted upon. A wind at the first "flag" and zero wind the rest of the way will move the bullet essentially like this
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The only force still at play after the bullet leaves the cross wind is lateral inertia. For a 10mph wind, that would be worth about 14.6fps opposed to roughly 3000fps of forward inertia. Yes, it will have a new course to it's new poi but I can't see how it will maintain an angular trajectory after the force of wind is no longer acting on it. If you've shot over flags much, you know that it's very common to have several flags going in different directions at the same time and that a steady crosswind is much easier to shoot predictably. So yes, if the bullet is subjected to a steady crosswind for it's entire flight, it may appear angular or curved in it's trajectory,
It didn't draw like I intended but I think it's good enough.
Pretty much but would be easier to visualize, to me, if the line between c and d were gone, that shows full drift in a constant wind for the entire flight. But yes, what you have shows that just because you have a blow at the bench, doesn't mean that blow is the same down range and won't have the same amount of deflection as if it were for the full flight.Does this illustrate a little better?
Birds eye view
Shooter at A
Straight line to target B no wind
Constant wind from the right drifts bullet left to D
At C the wind goes to zero bullet drifts to C then straight line to E
View attachment 1462259
It's all relative, depending on distance and your target. A 10mph full crosswind at 300 yards might still be a dead yote but that doesn't mean the bullet didn't drift and it sure wouldn't be in a group or 3/16" dot at that distance.I'm not a wind shooter, nearly seventy years of hunting with rifles the first 40 were in the forest of MN and WI, never had a problem with wind. Here in the west if it's windy I call them in closer and if the tumble.weeds pass me going down the freeway I head into the brush and call them in.real.close.
Yes and no.. Read post 27 again, please.