The Firing Line Forums - View Single Post - Using Ballistic Software to Determine Ballistic Reticle Zero

ndking1126 · April 21, 2013, 01:46 PM

I haven't been able to figure out the math on this but it seems to me it should be possible. I've got a scope with the Ballistic Plex reticle on my .30-06 and I'd like to find out the (theoretical) zero of each hash mark.

If I put the scope on full zoom and find out how many inches exist between each mark at 100 yards (ex: 200 yard line is 2" below the 100 yard, 300 yard line is 6.5" below, 400 line is 12"), it seems to me I should be able to go into something like JBMBallistics.com and figure out where each one is zereod at, based on my elevation, exact bullet BC and muzzle velocity. How would I go about doing that?

I know the most important thing is to go out and actually shoot at those distances to verify, but I think this would be a really good way to figure out what to expect. I used to be good at this kind of stuff in high school and college.. it's just been along time!

April 21, 2013, 01:46 PM	#1
ndking1126 Senior Member Join Date: January 26, 2008 Location: Madison, AL Posts: 1,932	Using Ballistic Software to Determine Ballistic Reticle Zero I haven't been able to figure out the math on this but it seems to me it should be possible. I've got a scope with the Ballistic Plex reticle on my .30-06 and I'd like to find out the (theoretical) zero of each hash mark. If I put the scope on full zoom and find out how many inches exist between each mark at 100 yards (ex: 200 yard line is 2" below the 100 yard, 300 yard line is 6.5" below, 400 line is 12"), it seems to me I should be able to go into something like JBMBallistics.com and figure out where each one is zereod at, based on my elevation, exact bullet BC and muzzle velocity. How would I go about doing that? I know the most important thing is to go out and actually shoot at those distances to verify, but I think this would be a really good way to figure out what to expect. I used to be good at this kind of stuff in high school and college.. it's just been along time!