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Hunting
Extreme Long Range Hunting & Shooting (ELR)
What Variable to change Wen truing my Weapon at Extended Ranges
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<blockquote data-quote="RandyinVa" data-source="post: 953239" data-attributes="member: 8049"><p>I didn't read all the responses, but it is likely I don't agree with any of the responders to your question.</p><p></p><p>When you prepare for running your table, you take input from a temp gauge, a chronograph, etc, and enter them into your software. You likely will start with the manufacturers BC which of course is representative of a range of travel, such as 1-1000 yes, 2400-3500, 100-200, etc. and you will not know for what distance You might want a BC to 500, another to 1000, etc.</p><p></p><p>After your obligatory 100 yd work, go to the above distance you want to use for the BC, enter the BC in the book and enter EVERYTHING else exactly as you read it, distance, temp, altitude. Shoot and observe. Tweak the BC up or down until the trajectory meets the software solution at at least 2 points. One would likely do, but you will feel better to observe 2 on the money.</p><p></p><p>I have done an awful lot of long range varminting and misses on the vertical were extremely rare.</p><p>I will be shooting in 10 days at distances up to 3500 and have just reattached an external scope with different spacing on the feet so I need to do work at 100 for a base and then probably 1000 and working up by 500 yes at a time. My BC will continue to decline making me shoot even higher to make up for it. As I get it right at each distance I have the makings of determining the new BC for each longer distance.</p><p></p><p>Take copious notes with drawings so that all that is found out can become KNOWLEDGE.</p><p></p><p>I am anal about ballistics and blasé about most everything else! Go figure.</p></blockquote><p></p>
[QUOTE="RandyinVa, post: 953239, member: 8049"] I didn't read all the responses, but it is likely I don't agree with any of the responders to your question. When you prepare for running your table, you take input from a temp gauge, a chronograph, etc, and enter them into your software. You likely will start with the manufacturers BC which of course is representative of a range of travel, such as 1-1000 yes, 2400-3500, 100-200, etc. and you will not know for what distance You might want a BC to 500, another to 1000, etc. After your obligatory 100 yd work, go to the above distance you want to use for the BC, enter the BC in the book and enter EVERYTHING else exactly as you read it, distance, temp, altitude. Shoot and observe. Tweak the BC up or down until the trajectory meets the software solution at at least 2 points. One would likely do, but you will feel better to observe 2 on the money. I have done an awful lot of long range varminting and misses on the vertical were extremely rare. I will be shooting in 10 days at distances up to 3500 and have just reattached an external scope with different spacing on the feet so I need to do work at 100 for a base and then probably 1000 and working up by 500 yes at a time. My BC will continue to decline making me shoot even higher to make up for it. As I get it right at each distance I have the makings of determining the new BC for each longer distance. Take copious notes with drawings so that all that is found out can become KNOWLEDGE. I am anal about ballistics and blasé about most everything else! Go figure. [/QUOTE]
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What Variable to change Wen truing my Weapon at Extended Ranges
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