06-27-2017, 05:57 AM
I use JBM (trajectory section) to plot out my drops after I've gotten some good chronograph readings. Then I'll print out the pages and actually test them out at the range. 100 - 500 yards is usually pretty easy to confirm, but past that I've found the wind can start moving the bullet a bit, though not nearly as much as any of the .30 cal stuff I've shot.
Lately I've been observing how temperature affects the trajectories. Comparing results in colder temps a few months ago to my latest results at 100 degrees was an eye opener, for long range stuff anyways.
Lately I've been observing how temperature affects the trajectories. Comparing results in colder temps a few months ago to my latest results at 100 degrees was an eye opener, for long range stuff anyways.