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The truth about ballistic efficiency

from RifleShooter

Ballisticians and rifle cranks love the word "ballistic efficiency," and it's become a common part of our vernacular. The term has become a sales pitch for cartridges in much the same way that the term "reliability" sells new cars, but how well do we understand the concept of ballistic efficiency — and how does it relate to energy, trajectory, pressure and a host of other interconnected factors that come into play every time we punch a primer? more

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