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
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
how do i make the shot
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="Buffalobob" data-source="post: 193827" data-attributes="member: 8"><p>1. Take your existing bullet and velocity and BC that matches your drop chart and enter that into a good program such as Exbal or JBM for the conditions that you shot the drops in. </p><p></p><p>2. When you have a good match then change the elevation and temperature to what you predict you will hunting in and save that drop chart to your hard drive.</p><p></p><p>3. Now then take your "predicted" drop chart factors and change the elevation by 1000 feet and record the difference in drop at 1000 yards. Then add another 1000 feet to that and record the drop change (pay attention here- I SAID CHANGE) and then do it one more time.</p><p></p><p>4. Next go back to your original predicted conditions and instead of changing the elevation change the temperature by 10 degrees and once more record the change. Do this two more times and each time record the change. </p><p></p><p>5. Average the three "change" number for altitude to get the average change per 1000 ft elevation change in drop at 1000 yards and then do the same for temperature. What you now have is two numbers which are "correction factors" to your basic drop chart. Recognize that they are for 1000 yards and that if you only shoot 800 yards you will only need 80 % of the correction factor.</p><p></p><p>6. Add these factors to somewhere on your "predicted"drop chart and tape to your stock or laminate and carry in your pocket as you prefer.</p><p></p><p>After doing what I told you to do you should have numbers at the top of your drop chart that are about like mine (specific to my rifle bullet and velocity) which are:</p><p></p><p>Effects @1000 yards</p><p>10 Degrees F = 0.1 MOA of drop</p><p>1000 ft elevation = 0.2 MOA of drop</p><p></p><p></p><p>You have to remember which way each change is going.</p><p></p><p></p><p>I expect other people will tell you some other things and that is fine with me. I do what I do and that is what I do.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 193827, member: 8"] 1. Take your existing bullet and velocity and BC that matches your drop chart and enter that into a good program such as Exbal or JBM for the conditions that you shot the drops in. 2. When you have a good match then change the elevation and temperature to what you predict you will hunting in and save that drop chart to your hard drive. 3. Now then take your "predicted" drop chart factors and change the elevation by 1000 feet and record the difference in drop at 1000 yards. Then add another 1000 feet to that and record the drop change (pay attention here- I SAID CHANGE) and then do it one more time. 4. Next go back to your original predicted conditions and instead of changing the elevation change the temperature by 10 degrees and once more record the change. Do this two more times and each time record the change. 5. Average the three “change” number for altitude to get the average change per 1000 ft elevation change in drop at 1000 yards and then do the same for temperature. What you now have is two numbers which are “correction factors” to your basic drop chart. Recognize that they are for 1000 yards and that if you only shoot 800 yards you will only need 80 % of the correction factor. 6. Add these factors to somewhere on your "predicted"drop chart and tape to your stock or laminate and carry in your pocket as you prefer. After doing what I told you to do you should have numbers at the top of your drop chart that are about like mine (specific to my rifle bullet and velocity) which are: Effects @1000 yards 10 Degrees F = 0.1 MOA of drop 1000 ft elevation = 0.2 MOA of drop You have to remember which way each change is going. I expect other people will tell you some other things and that is fine with me. I do what I do and that is what I do. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
how do i make the shot
Top