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Originally Posted by urcayuse
Playing with some loads today ,just barely MOA @ 100yds. Yet they are sub 1/4 MOA at 570. Do some bullets require some flight time before they get stable? Does'nt seem to make sense but i've found this to be the result twice. Any more experienced guys out there get similar results?  |
Makes no sense to me either, but its happened a few times. I thought it was a parallax problem until it happened again with peep sights. Bryan Litz in his Applied Ballistics book calls this the "epicyclic swerve" or corkscrew trajectory. Google epicyclic swerve and several you-tube videos will pop up. There is one that shows time of flight as well as distance traveled.