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Rifles, Reloading, Optics, Equipment
Reloading
Calculating OAL
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<blockquote data-quote="Mikecr" data-source="post: 738219" data-attributes="member: 1521"><p>I agree with posted except the 10-20thou 'range' of seating for optimum performance.</p><p>With every gun I've worked with, including factory, best seating depth represented a huge change in the gun's performance. Grouping is sometimes outright halved.</p><p>Through further testing from this point(wherever it is), the biggest window I've found to hold this performance has been around +/-3-5thou. Far tighter than 10-20thou.</p><p></p><p>I have not had to keep chasing normal land erosion. Once that initial best seating depth was determined, I've never needed to adjust it again. Just seat very accurately to that exact same depth and everything holds.</p><p>A qualifier to this though; I don't continue shooting barrels past their peak. It ain't worth it, new barrels are cheaper..</p></blockquote><p></p>
[QUOTE="Mikecr, post: 738219, member: 1521"] I agree with posted except the 10-20thou 'range' of seating for optimum performance. With every gun I've worked with, including factory, best seating depth represented a huge change in the gun's performance. Grouping is sometimes outright halved. Through further testing from this point(wherever it is), the biggest window I've found to hold this performance has been around +/-3-5thou. Far tighter than 10-20thou. I have not had to keep chasing normal land erosion. Once that initial best seating depth was determined, I've never needed to adjust it again. Just seat very accurately to that exact same depth and everything holds. A qualifier to this though; I don't continue shooting barrels past their peak. It ain't worth it, new barrels are cheaper.. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Calculating OAL
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