I use Streloc to make hold over dope sheets. But I am far from an expert at using it to make my rifle more accurate. How would one go about that? I’d love to see a thread showing how to use Streloc to make my rifle more accurate or is that even a thing?
You can do what the most recent part of this discussion is addressing and estimate the pellet speed that will give you the minimum wind drift @ distance.
1) Create a spreadsheet and create a column of speeds (i.e., something like 740 to 1100 fps in 20 fps increments)
2) Setup Strelok for your favorite ammo. Make sure bc, etc. are all as accurate as possible.
3) Set the wind speed to something like 15mph @ 90 deg.
4) Calculate for the current conditions and record the horizontal drift in the second column of your table (drift). I use units of mrad, but you can choose inches or MOA, etc.
5) Change your projectile muzzle velocity and repeat (4) until your table is complete (for each velocity).
Once complete, you can chart your data (or just eye ball it). You'll see a minimum inflection point. This would be the speed that your projectile will be affected the least by wind. However, this is only one accuracy variable. It could be that shooting at this speed would create harmonics in your gun that would adversely affect accuracy. Luckily, the affect of drift doesn't increase quickly as you move from the minimum point so you have a range of acceptable velocities to play with.
Example, here is a table generated by using steps 1-5 above and recording the drift for each muzzle velocity:
This is a plot of the data:
So, minimum wind drift occurs for this pellet between 860 and 920 fps. If it shoots well at 920, I might choose to tune the gun to shoot this pellet @ 920 so that I would get minimum wind drift even as the pellet slows down to 860.
It would be nice if Strelok could allow you to generate tables based on any variable (such as velocity), then you could just generate this table directly in Strelok without having to calculate the drift for each velocity and recording the numbers separately.
-Clayton
