Yeah, I went AF and didn't get sniper training.Join the army, train to be a sniper and you'll have it down pat.
I've chronographed my bullet speeds and have the data out to 900yrds. I've been fairly decent with wind and getting within a 12" steel target in 2 or 3 shots. Just trying to do it in less. Today I had a 15ish NW wind and was shooting fruit that was on sale @ 600yrds. Watermelon exploded on 2nd shot, yellow squash was on after that but I tried for a grapefruit. 6 shots and couldn't hit the damn thing. Up and down was on target but the holdover was off and not consistent but that could've just been me. I'll just keep practicing.Link
It's no match for sniper training, lol. Not exactly sure what part you're looking for. Kind of a 2 part problem, first is estimating wind speed & angle to the bullet direction, then applying that to known drift values based on the cartridge being used. The predicted drift tables for common cartridges/projectiles can be found online.
I wouldn't be too hard on myself about that.Today I had a 15ish NW wind and was shooting fruit that was on sale @ 600yrds. Watermelon exploded on 2nd shot, yellow squash was on after that but I tried for a grapefruit. 6 shots and couldn't hit the damn thing. Up and down was on target but the holdover was off and not consistent but that could've just been me.
I wouldn't be too hard on myself about that.
Accurate wind speed calls (and variance downrange) are important. As is being able to judge when conditions are the same as before, or if they've changed (and by how much).
Sometimes this can lead you to shoot into a gust that hasn't reached you yet, then adjust your hold based on impact and shoot into a lull that hasn't reached you yet.
The difference in windage between 13mph & 17mph 3/4 value winds is ~1 MoA for your 225gr 300prc, and ~3 MoA for 69gr 5.56. That doesn't seem like a drastic difference, but your grapefruit probably isn't much different than 1 MoA @ 600y either.
Want to get really frustrated? Use inflated balloons instead of stationary targets.
You'll swear the bullets push them out of the way...
I tried the balloons today. 90 out with no wind and it took 2 shots at a 8" balloon but it was cool watching it just disappear about a half second after a squeezed the trigger. Also ended another watermelons life but that damn grapefruit is still kickin.I wouldn't be too hard on myself about that.
Accurate wind speed calls (and variance downrange) are important. As is being able to judge when conditions are the same as before, or if they've changed (and by how much).
Sometimes this can lead you to shoot into a gust that hasn't reached you yet, then adjust your hold based on impact and shoot into a lull that hasn't reached you yet.
The difference in windage between 13mph & 17mph 3/4 value winds is ~1 MoA for your 225gr 300prc, and ~3 MoA for 69gr 5.56. That doesn't seem like a drastic difference, but your grapefruit probably isn't much different than 1 MoA @ 600y either.
Want to get really frustrated? Use inflated balloons instead of stationary targets.
You'll swear the bullets push them out of the way...