Understanding Long Range Rifle Atmosphere Pressure Issues is a challenge for me. I see wonderful scholarly definitions that simply confuse me. If you have an “engineer’s mind” this is probably easy stuff, but for those of us that are less technical-minded, please join me as I try to hash it out. The three places I typically shoot are at 4900 feet elevation, 6250 feet elevation and 7100 feet elevation. When the money comes through from a Nigerian Prince that “has very much trust in me” and is sharing his inheritance, I plan to buy a yacht to shoot from and a barge to set my targets on for ocean shooting at about 10 feet elevation. Let’s use these four elevations as examples.
Standard Pressure, Station Pressure, Absolute Pressure, Corrected Pressure or True Pressure? What are the differences? Which one should you use for your Applied Ballistic or Vortex LRBC or JBM ballistic calculators? Again, I am not going to give you the hard-to-understand complicated scientific answer, just the basics for folks like us, not the engineer.
…in progress … check back soon …
As with many of his videos, Rex explains the issue pretty well in the following video, but are JBM fields the same as Applied Ballistics and Vortex or do some have double-negatives to watch out for?