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Rifles, Reloading, Optics, Equipment
Reloading
seating depth along with powder charge
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<blockquote data-quote="FearNoWind" data-source="post: 946531" data-attributes="member: 50867"><p>I typically start with a seating depth at .020 - .025 off the lands and find a powder charge that is within SAMMI specs. that provides the best groups on target. The "sweet spot" for my load is identified when a range of powder charges within .2 grains of each other (e.g. 24.8, 25.0, 25.2) all print on target with approximately the same grouping, with a SD goal of less than 10. Then I use the middle load (in the example that's 25.0) to work on seating depth. After that I run a final series of samples to validate and, if necessary, fine tune the finished load.</p><p>Loading with over-all lengths that place the bullet into the lands is something I avoid. There is no scientific evidence that loading into the lands offers any benefit to accuracy. I have never found loading into the lands to offer any advantage and, often, find it actually produces inferior results.</p><p>Just for the record, I get better results with H335 than Benchmark with those types of loads.</p></blockquote><p></p>
[QUOTE="FearNoWind, post: 946531, member: 50867"] I typically start with a seating depth at .020 - .025 off the lands and find a powder charge that is within SAMMI specs. that provides the best groups on target. The "sweet spot" for my load is identified when a range of powder charges within .2 grains of each other (e.g. 24.8, 25.0, 25.2) all print on target with approximately the same grouping, with a SD goal of less than 10. Then I use the middle load (in the example that's 25.0) to work on seating depth. After that I run a final series of samples to validate and, if necessary, fine tune the finished load. Loading with over-all lengths that place the bullet into the lands is something I avoid. There is no scientific evidence that loading into the lands offers any benefit to accuracy. I have never found loading into the lands to offer any advantage and, often, find it actually produces inferior results. Just for the record, I get better results with H335 than Benchmark with those types of loads. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
seating depth along with powder charge
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