Wolf Match Extra wind chart for 50yd/100yd

[CADDIE5]

Is there a wind chart similar to HP or Palma that gives wind correction in 1/10 or 1/8 moa for f class smallbore @ 50 & 100yd based on wind direction and mph? I could use shooter app if I knew g1 bc and bullet length for the ammo. Thanks.Steve

 

[dutch14]

I don't know of any actual wind charts but if you have a balistics program a bc of .120 will get you close enough for all but bench rest and under 200 yards.

 

[dc.fireman]

Take a look at this -

 

[gkgeiger]

Take a look at this -

What are the numbers within the circle, POA or POI?

 

[dc.fireman]

What are the numbers within the circle, POA or POI?

POI, corresponding to wind effect on a bullet.

 

[gkgeiger]

I like and use Landy's chart. It shows POA to compensate for wind. Works most of the time. I don't necessarily agree with 6 and 12.

 

[USMCDOC]

Is there a wind chart similar to HP or Palma that gives wind correction in 1/10 or 1/8 moa for f class smallbore @ 50 & 100yd based on wind direction and mph? I could use shooter app if I knew g1 bc and bullet length for the ammo. Thanks.Steve

you could try this..

Lapua Ballistics App

Lapua Ballistics is the ultimate 6DOF ballistics calculator for mobile devices. It’s the first mobile ballistics app utilizing the 6DOF calculation model, which makes it the most accurate ballistics…

www.lapua.com

 

[JEFFPPC]

Ballistic charts, graphs, whatever....have a place. But experience, practice, only shoot over flags, and going back to the sighter will serve you better than all the rest. Never shoot a match without a timer. You paid for x amount of time, use it. Know how much time you need to shoot 1 or 2 shoots correctly.

 

[tovaert]

Is there a wind chart similar to HP or Palma that gives wind correction in 1/10 or 1/8 moa for f class smallbore @ 50 & 100yd based on wind direction and mph? I could use shooter app if I knew g1 bc and bullet length for the ammo. Thanks.Steve

Here you go...see attachment. Based on Midas+ and Center-X ballistics, so should be close to what you're using for ammo unless your MV is way off. I used the Shooter iPhone app. My zero is at 50 yds., then two additional rosettes for 50 m and 100 yards. I have a Sightron scope with 1/8 MOA clicks (on a Shultz and Larsen M48 free rifle). Inner rings are wind speeds in mph (4, 8, 12, etc.), values in the circles are 1/8 MOA clicks.

I highlight click values and wind direction changes (say, a "sector" on a rosette). That sector can then be transferred "forward" to the longer distances if the wind conditions remain constant. With a wind meter on a vane, like the Kestrel, it works pretty well. I used hold-offs for momentary shifts.

You can also have lateral and elevation adjustment due to the mirage effect, even at 100 yards, but that's a different chart. Ballistics (Midas+ and Center-X):

0-------10------50------100 yards

1073---1052---985-----920 fps_____Website Data
1073---1052---982.7---915.3_______Quoted BC = .131, STP, 0% RH, Shooter app.

0.122 BC at 75F, 75% RH, 750’ MSL…gives good agreement.

 

[CADDIE5]

Thanks for taking the time to post the windchart rosette. I'm shooting an Anschutz with Sightron 10x50x60mm scope as well. Could you also post your mirage chart when you get some free time. Thanks, Steve

Here you go...see attachment. Based on Midas+ and Center-X ballistics, so should be close to what you're using for ammo unless your MV is way off. I used the Shooter iPhone app. My zero is at 50 yds., then two additional rosettes for 50 m and 100 yards. I have a Sightron scope with 1/8 MOA clicks (on a Shultz and Larsen M48 free rifle). Inner rings are wind speeds in mph (4, 8, 12, etc.), values in the circles are 1/8 MOA clicks.

I highlight click values and wind direction changes (say, a "sector" on a rosette). That sector can then be transferred "forward" to the longer distances if the wind conditions remain constant. With a wind meter on a vane, like the Kestrel, it works pretty well. I used hold-offs for momentary shifts.

You can also have lateral and elevation adjustment due to the mirage effect, even at 100 yards, but that's a different chart. Ballistics (Midas+ and Center-X):

0-------10------50------100 yards

1073---1052---985-----920 fps_____Website Data
1073---1052---982.7---915.3_______Quoted BC = .131, STP, 0% RH, Shooter app.

0.122 BC at 75F, 75% RH, 750’ MSL…gives good agreement.

 

[CADDIE5]

Thanks to everyone for their thoughts and info. New to smallbore but regularly compete in f class midrange and LR.

 

[tovaert]

Thanks for taking the time to post the windchart rosette. I'm shooting an Anschutz with Sightron 10x50x60mm scope as well. Could you also post your mirage chart when you get some free time. Thanks, Steve

At some point I'll try to revise it...it is not set up for 1/8 MOA clicks.