Hello,
After a long hiatus, I recently got back into High Power Service Rifle and am having a lot of fun (again). So far I have found a few issues with position and sight picture. My old sight picture caused a few issues the further back I went. As I work through the issues the rifle performance seems more in line with physics. With that in mind it seemed like a good idea to compare my actual elevation per a given yard line (200, 300, 600) with what trajectory applications would expect. The results are a lot further off from expectations...
The figure below shows what I'm referring to. First off - I'm trying to use 1/4 minute elevation clicks as an axis and distance as the other axis. The title shows the 300 and 600 difference between what I'm getting and strelok predicts (seems large to me). The strelok and gunData.org data appear to be minutes, so I'm multiplying by 4 to get to 1/4 minute sights. I also need to divide the gunData output respectively by 2, 3, and 6.
About the ammo used - I am working through old (2003ish) black hills ammo 75 grain moly.
I would like to see my trajectory shapes match up a little better with the predictions.
Another interesting note - the data was generated at Pelham's 600 yard range. Each line is a little higher than the previous. I'm wondering if the elevation of each yard line could be causing the issue...
Any thoughts?
Anthony
Note: the attached thumbnail below has errors - the one above seems correct.
After a long hiatus, I recently got back into High Power Service Rifle and am having a lot of fun (again). So far I have found a few issues with position and sight picture. My old sight picture caused a few issues the further back I went. As I work through the issues the rifle performance seems more in line with physics. With that in mind it seemed like a good idea to compare my actual elevation per a given yard line (200, 300, 600) with what trajectory applications would expect. The results are a lot further off from expectations...
The figure below shows what I'm referring to. First off - I'm trying to use 1/4 minute elevation clicks as an axis and distance as the other axis. The title shows the 300 and 600 difference between what I'm getting and strelok predicts (seems large to me). The strelok and gunData.org data appear to be minutes, so I'm multiplying by 4 to get to 1/4 minute sights. I also need to divide the gunData output respectively by 2, 3, and 6.
About the ammo used - I am working through old (2003ish) black hills ammo 75 grain moly.
I would like to see my trajectory shapes match up a little better with the predictions.
Another interesting note - the data was generated at Pelham's 600 yard range. Each line is a little higher than the previous. I'm wondering if the elevation of each yard line could be causing the issue...
Any thoughts?
Anthony
Note: the attached thumbnail below has errors - the one above seems correct.
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