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Rifles, Reloading, Optics, Equipment
Reloading
What chronograph
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<blockquote data-quote="Dean2" data-source="post: 1613398" data-attributes="member: 26077"><p>A chronograph is the single best indicator of pressure the average shooter can use. By the time primes crater and ejector marks appear you are already past safe pressure. When primer pockets enlarge or bolts get sticky you are far into the danger zone. To develop a load and not measure the velocity as you add powder is asking for trouble. </p><p></p><p>I have often hit max velocity at well below published max load, and any time you hit a spot where you are adding powder and velocity doesn't change you have reached max safe pressure. I always stop loading at max published velocity, if the bullet is traveling faster it is also getting higher pressure than the published load. Most of the time, there are no classic pressure signs till you are well above safe pressure/speed.</p><p></p><p>A Chronograph that allows you to measure every shot during load development and accuracy testing is a key requirement as far as I am concerned. For this reason, a Chrony, Caldwell or Labradar are my preferred choices with the Labrader taking first place for most cartridges.</p></blockquote><p></p>
[QUOTE="Dean2, post: 1613398, member: 26077"] A chronograph is the single best indicator of pressure the average shooter can use. By the time primes crater and ejector marks appear you are already past safe pressure. When primer pockets enlarge or bolts get sticky you are far into the danger zone. To develop a load and not measure the velocity as you add powder is asking for trouble. I have often hit max velocity at well below published max load, and any time you hit a spot where you are adding powder and velocity doesn't change you have reached max safe pressure. I always stop loading at max published velocity, if the bullet is traveling faster it is also getting higher pressure than the published load. Most of the time, there are no classic pressure signs till you are well above safe pressure/speed. A Chronograph that allows you to measure every shot during load development and accuracy testing is a key requirement as far as I am concerned. For this reason, a Chrony, Caldwell or Labradar are my preferred choices with the Labrader taking first place for most cartridges. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
What chronograph
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