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The Range
Ammo & Reloading
Load devlopment, how many shots?
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<blockquote data-quote="Jcann" data-source="post: 3281544" data-attributes="member: 33119"><p>When I'm out doing load development I generally load up 5 rounds each with different powder charges; say 42, 42.3, 42.6, 42.9. I'll shoot 3 rounds for group and 2 rounds across the magneto speed for muzzle velocity. If I have a charge weight that shows promise I'll load up 5 each with differing bullet seating depths and shoot all 5 for groups hopefully finding one or more batches that shoot great. After I've settled on one particular load I load up 50-100 rounds, shoot 10 across the chronograph and gather data at varying distances while periodically shooting a few across the chronograph checking to see if they have sped up or slowed down with a hot barrel. The only truly "group" shooting I do is at 100 yards (5 rounds). If I can hit a 5" gong out to 500 yards and an 8" gong from 500-945 yards consistently I call GOOD on that load.</p></blockquote><p></p>
[QUOTE="Jcann, post: 3281544, member: 33119"] When I'm out doing load development I generally load up 5 rounds each with different powder charges; say 42, 42.3, 42.6, 42.9. I'll shoot 3 rounds for group and 2 rounds across the magneto speed for muzzle velocity. If I have a charge weight that shows promise I'll load up 5 each with differing bullet seating depths and shoot all 5 for groups hopefully finding one or more batches that shoot great. After I've settled on one particular load I load up 50-100 rounds, shoot 10 across the chronograph and gather data at varying distances while periodically shooting a few across the chronograph checking to see if they have sped up or slowed down with a hot barrel. The only truly "group" shooting I do is at 100 yards (5 rounds). If I can hit a 5" gong out to 500 yards and an 8" gong from 500-945 yards consistently I call GOOD on that load. [/QUOTE]
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