Long range for beginners

[jasnt]

Average 14mph wind at my position. So windy I only got one shot recorded before the tripod blew over. 12/16 on hits today at 735 yards.
Cold bore shot
Crummy video...I need a better tripod


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[Yondering]

Found this today

Where did it come from (who published it)? If accurate, it could be pretty handy. I see a couple on there that surprise me, like AA2460 (pretty low) and IMR 4895 (pretty high) compared to my own experiences.

[Emptyhanded]

Off topic, but in regards to geographic elevation as an input for calculations. I recently happened onto a new but older model kestrel 4000 and it seems the “calculated” elevation that it gives is off from what my gps says the elevation is. Do you guys use the elevation from the kestrel? Is it a more accurate projection of the “elevation” since it bases it off of pressure and what not? Maybe it doesn’t matter that much but it had me wondering. Just trying to get a better grasp on the different elements involved in longer range shooting.


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[buckfvr]

Absolute pressure will vary even at the same spot, but it is for a fact pressure that is the correct data for (most) your app, not elevation.

[jasnt]

Found this today

Where did it come from (who published it)? If accurate, it could be pretty handy. I see a couple on there that surprise me, like AA2460 (pretty low) and IMR 4895 (pretty high) compared to my own experiences.

i found it over at longrange hunting forum. Not sure who published it

Off topic, but in regards to geographic elevation as an input for calculations. I recently happened onto a new but older model kestrel 4000 and it seems the “calculated” elevation that it gives is off from what my gps says the elevation is. Do you guys use the elevation from the kestrel? Is it a more accurate projection of the “elevation” since it bases it off of pressure and what not? Maybe it doesn’t matter that much but it had me wondering. Just trying to get a better grasp on the different elements involved in longer range shooting.


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That is the correct preasure but when entering your inputs in to your app leave elevation at zero.  That will give you your best results.

[Yondering]

Off topic, but in regards to geographic elevation as an input for calculations. I recently happened onto a new but older model kestrel 4000 and it seems the “calculated” elevation that it gives is off from what my gps says the elevation is. Do you guys use the elevation from the kestrel? Is it a more accurate projection of the “elevation” since it bases it off of pressure and what not? Maybe it doesn’t matter that much but it had me wondering. Just trying to get a better grasp on the different elements involved in longer range shooting.


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I don't use a Kestrel, so maybe this is a dumb question, but - are you mixing up density altitude with actual gps altitude? Density altitude is a really handy single number input for ballistic app solutions; it varies from actual altitude based on temperature and pressure (and to a tiny extent, humidity). For example, my house is at 365 ft above sea level, but density altitude here can vary anywhere from -2000 ft to +2500 ft throughout the year.

[jasnt]

On my kestrel if you change from corrected preasure to station(absolute) preasure the elevation changes with preasure changes.  Da is a total different way of measuring pressure altogether.

[Emptyhanded]

I believe the kestrel gives me altitude and density altitude as two different figures. Reading the directions, it sounds like their given altitude figure is calculated based on pressure and temperature etc. but I could be wrong. Like I said, this is all fairly new to me and am just trying to figure out the most accurate starting point for gathering data. I have been shooting out to 800 comparing my numbers to the calculator, but want to gain a better understanding of all the influencing factors.


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[jasnt]

Having some fun with my 22lr today. 400 yards
Cci mini mag 36 gr hp
78 moa elevation 7-10 moa wind
Wind was 1-3 mph from 3-4 O clock

Trying to really keep an eye on mirage while shooting and adjusting my wind holds. The 22 is helping

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[jasnt]

Well we had fun but camera died before we got to a mile.  Got out to 1450 but could not spot impacts past that.  Conditions weren’t great for spotting as we got out there a bit late and most the target rocks were in shadows.  Was soggy and wet.  Maybe in a few weeks we can head out again

[aaronoto]

I believe the kestrel gives me altitude and density altitude as two different figures. Reading the directions, it sounds like their given altitude figure is calculated based on pressure and temperature etc. but I could be wrong. Like I said, this is all fairly new to me and am just trying to figure out the most accurate starting point for gathering data. I have been shooting out to 800 comparing my numbers to the calculator, but want to gain a better understanding of all the influencing factors.


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On a Kestrel you can get both station/absolute pressure or barometric pressure (corrected for altitude).  I recommend using station/absolute pressure so you don't have to worry about whether your altitude is actually correct or not.

If you want the Kestrel to display station/absolute pressure just leave your reference altitude always set at 0 regardless of what elevation you are at.

On your ballistics calculator when you input environmentals, check the "pressure is absolute" box and enter no elevation, or uncheck the box that might say something to the affect of "pressure is corrected."

[Emptyhanded]

I believe the kestrel gives me altitude and density altitude as two different figures. Reading the directions, it sounds like their given altitude figure is calculated based on pressure and temperature etc. but I could be wrong. Like I said, this is all fairly new to me and am just trying to figure out the most accurate starting point for gathering data. I have been shooting out to 800 comparing my numbers to the calculator, but want to gain a better understanding of all the influencing factors.


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On a Kestrel you can get both station/absolute pressure or barometric pressure (corrected for altitude).  I recommend using station/absolute pressure so you don't have to worry about whether your altitude is actually correct or not.

If you want the Kestrel to display station/absolute pressure just leave your reference altitude always set at 0 regardless of what elevation you are at.

On your ballistics calculator when you input environmentals, check the "pressure is absolute" box and enter no elevation, or uncheck the box that might say something to the affect of "pressure is corrected."

Perfect! That’s exactly what I wanted to know. Thank you!


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[Special T]

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[jasnt]

That looks fun!! 

[TheArmoredShop]

Couple small tips (I’ve got lots of big ones).

Make sure you have a muzzlebrake. For two reasons.  Becoming proficient at Long range shooting takes practice, and sore shoulders all the time from a brutal recoil gun sucks.  Additionally, the muzzle brake really allows you to stay on target after the shot and smooths out the process.

Also, after ensuring four times that the gun is unloaded, practice dry firing in the living room. Even for five minutes. Work on your shot routine, make it the same every time. Breath. Squeeze through the trigger. Kill the flinch (if you have one)

Practicing dry firing was absolutely essential in killing my bear last year. We were surprised on the pack out and everything was a little rushed. I was still able to go through my routine. Dial. Level. Breathe. Squeeze.  All sub consciously.

That equated to a dead bear at 511 yards.


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Suppressor is even better.


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