“No mere gadget, the chronograph is one of the most powerful tools imaginable in load development and problem diagnosis. A bullet’s velocity is one of the major contributors to its behavior, and if you don’t know what its velocity is, you may never understand that behavior. But knowing why the bullet behaves as it does, you can take intelligent corrective action that wasn’t available to you before.” – Dan Hackett, Precision Shooting Magazine A chronograph can be a powerful tool … but if you get more than a few “ERROR” readings in a row, you may be tempted to put ...
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