Advice on a couple odd fliers@1k f class

[Shawnba67]

So I shot ar Atterbury on Sun the 28th.
It was slightly overcast with decent breeze occasionally straight head on. Tents didnt blow over but they did flap a good bit. mostly from 1 or 2 oclock(my guess) with target being 12.
There was a lot of mirage, and a few times non at all. I cant remember if these times line up with fliers.
Anyway 6mm Hybrid 105 launched at 3030fps. I think the odd angle of group might be do to the rear bag not being level as the ground under me was mini Appalacian Mountain range. Its just as likely I have no idea why group is on a 45 so feel free to add advise on that! thanks for any advice.

 

[Dusty Stevens]

Sometimes, not always, those high flyers are from your rest setup- in my experience it would be either having a harder than sand surface it hit on the rear bag or heavy sand in the ears of the front or rear bag. As for the 45deg thats exactly what a left twist barrel does during letups and pickups. Not sure what did yours

 

[Ringostar]

A head wind from 1 o’clock can tend to push you down. When you have a slight let up, it probably took you up and right. You likely had a boil with the straight high shots.

 

[Shawnba67]

A head wind from 1 o’clock can tend to push you down. When you have a slight let up, it probably took you up and right. You likely had a boil with the straight high shots.

Is there any way to spot a boil?

 

[Drolds72]

Is there any way to spot a boil?

this is pretty comprehensive...
http://southtexasshooting.org/multimedia/text/mirage.html

look at the way the mirage displaces the target with some wind. Looks alot like your 45 degree shots. Then envision the mirage changing to a boil and there are your 2 high shots.

Edit- This is taking me a lot of practice to use it- right now, If I can spot a switch in a mirage before the flags show it, I am very happy.

 

[Dusty Stevens]

Is there any way to spot a boil?

Sometimes changing the focus of your scope helps see it. Also focus on some kind of horizontal object like the top of the target frame to see how its moving

 

[JFM33]

If you shoot with a spotting scope you can bring the focuse in around the 200 yd brem and watch the mirage. Also I noticed the velocity on shot 17 was 50fps higher and remember when shooting on days with moving cloud cover lights up sights up.

 

[lawman29]

Shots 1-5 is a 'group', then wind from left started blowing? 6&7, you corrected finally with 8, wind picked up some more then another group 9-13 (there is vertical but all the same ~ windage), corrected back to 14, then centered up 15-18 same windage but vertical) 19-20 vertical gone...with mirage the center looks like its bouncing? shoot at the bottom bounce

 

[Ringostar]

Is there any way to spot a boil?

Look at the first pic in the link that Drolds posted. When the waves in the mirage are moving left or right that is showing wind movements. When the wind lets up or is in the middle of a switch, the waves tend to run vertical. The target will appear to be higher than what it really is. If you raise your point of aim to where the target appears to be, you will actually be shooting high. As lawman said, aim low!