Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Long Range Hunting & Shooting
High and Low Impact - Early morning & Late afternoon
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Windpomp" data-source="post: 1361097" data-attributes="member: 88712"><p>I have been struggling with High and Low misses in the early morning (during sunrise) and late afternoon (during sunset) and now try to take the shot only after 09h00 when the sun settles a bit higher in the sky.</p><p></p><p>For the past 4 months I have been doing a bit of range time to pinpoint or predict the high and low hits and this is where I got…...</p><p></p><p> </p><p></p><p>80% of the time I would get 0.5MOA low groups before 08h00 in the morning.</p><p></p><p>On several occasions the groups will climb to about 1.0 MOA (0.5MOA above midday zero) for about 30min during sunrise and then drop down to the 0.5MOA below zero where it will stay until after 08h00.</p><p></p><p>The groups then settle at the theoretical zero and stays there until 17h00.</p><p></p><p>After 17h00 the groups tends to hit high 0.5 MOA.</p><p></p><p>On several occasions the exact same high groups (1.0 MOA) would occur in the late afternoon during sunset. </p><p></p><p>I have worked through a thesis in surveying, explaining the problems in refraction that causes the phenomenon whereby a false image is seen either low or high.</p><p>There was however no published solution or prediction on how to determine which one (low or high) one would expect?</p><p></p><p>How do you deal with this, or do you simply wait until a bit later in the morning?</p></blockquote><p></p>
[QUOTE="Windpomp, post: 1361097, member: 88712"] I have been struggling with High and Low misses in the early morning (during sunrise) and late afternoon (during sunset) and now try to take the shot only after 09h00 when the sun settles a bit higher in the sky. For the past 4 months I have been doing a bit of range time to pinpoint or predict the high and low hits and this is where I got…... 80% of the time I would get 0.5MOA low groups before 08h00 in the morning. On several occasions the groups will climb to about 1.0 MOA (0.5MOA above midday zero) for about 30min during sunrise and then drop down to the 0.5MOA below zero where it will stay until after 08h00. The groups then settle at the theoretical zero and stays there until 17h00. After 17h00 the groups tends to hit high 0.5 MOA. On several occasions the exact same high groups (1.0 MOA) would occur in the late afternoon during sunset. I have worked through a thesis in surveying, explaining the problems in refraction that causes the phenomenon whereby a false image is seen either low or high. There was however no published solution or prediction on how to determine which one (low or high) one would expect? How do you deal with this, or do you simply wait until a bit later in the morning? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
High and Low Impact - Early morning & Late afternoon
Top