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Rifles, Reloading, Optics, Equipment
Reloading
Thoughts on OCW test
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<blockquote data-quote="J-B welder" data-source="post: 2348634" data-attributes="member: 115997"><p>I am absolutely NOT an expert so take that into consideration. OCW isn't about the group size or shape, it's about the POI shift between groups. It looks to me like the group centers shift the least between 41.5 and 42.0. If you download Gordon's Reloading Tool (free) you can use their group center calculator to confirm how much shift you have between group centers. If it turns out my ocular estimate is right, I'd try playing with seating depth at 41.7. If 42 was the first charge you noticed the powder compressing I wouldn't worry about it. Tap the case a few times after adding the powder to settle it a little if you want.</p></blockquote><p></p>
[QUOTE="J-B welder, post: 2348634, member: 115997"] I am absolutely NOT an expert so take that into consideration. OCW isn't about the group size or shape, it's about the POI shift between groups. It looks to me like the group centers shift the least between 41.5 and 42.0. If you download Gordon's Reloading Tool (free) you can use their group center calculator to confirm how much shift you have between group centers. If it turns out my ocular estimate is right, I'd try playing with seating depth at 41.7. If 42 was the first charge you noticed the powder compressing I wouldn't worry about it. Tap the case a few times after adding the powder to settle it a little if you want. [/QUOTE]
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Reloading
Thoughts on OCW test
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