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Long Range Hunting & Shooting
question on seating depth/ladder test
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<blockquote data-quote="Tex_Hunter" data-source="post: 1666334" data-attributes="member: 31749"><p>I tend to start with charge weights at a fixed COAL, either manufacturers recommended jump or longest length that will feed from the mag, and look for not just the best group but narrowest velocity spread as well. I'll usually do a velocity ladder first where I focus entirely on numbers from the chrono looking for flat spots regardless of group size. I'll then pick the fastest flat spot load up 5 rounds at each charge weight bracketing it and shoot for groups.</p><p></p><p>That will usually yield something in the 0.5MOA range with single digit SDs in my experience so I call it good at the point. Honestly, unless it is much more than 0.75MOA I still wouldnt mess with it as long as it still had single digit SDs.</p><p></p><p>Shooting bughole groups is fun for throwing shade on other people at the range or if you are a bench rest shooter, but for practical shooting disciplines and field use if you look at WEZ analysis, group size has a negligible impact on hit probability once you get below 1MOA.</p></blockquote><p></p>
[QUOTE="Tex_Hunter, post: 1666334, member: 31749"] I tend to start with charge weights at a fixed COAL, either manufacturers recommended jump or longest length that will feed from the mag, and look for not just the best group but narrowest velocity spread as well. I'll usually do a velocity ladder first where I focus entirely on numbers from the chrono looking for flat spots regardless of group size. I'll then pick the fastest flat spot load up 5 rounds at each charge weight bracketing it and shoot for groups. That will usually yield something in the 0.5MOA range with single digit SDs in my experience so I call it good at the point. Honestly, unless it is much more than 0.75MOA I still wouldnt mess with it as long as it still had single digit SDs. Shooting bughole groups is fun for throwing shade on other people at the range or if you are a bench rest shooter, but for practical shooting disciplines and field use if you look at WEZ analysis, group size has a negligible impact on hit probability once you get below 1MOA. [/QUOTE]
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question on seating depth/ladder test
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