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Rifles, Reloading, Optics, Equipment
Reloading
Seating depth sweet spot
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<blockquote data-quote="Mikecr" data-source="post: 1108573" data-attributes="member: 1521"><p>I pick what I think is my best prospect in bullet and do full seating testing with that.</p><p>Where I change bullets I take one of two paths:</p><p>-If the bullets are like in ogive type(tan to tan, sec to sec), the second bullet begins at the same CBTO as the fully tested bullet. Then I fine tweak test for group shaping.</p><p>-If the bullets are different in ogive type, I also do full testing with the new bullet.</p><p></p><p>For me so far, bullet weight changes haven't affected best tested seating(coarse). Nor have powder or primer changes. And while I'm off the lands(OTL), throat erosion hasn't mattered, even while a bullet's relationship to lands is changing with use.</p><p>Given this, I cannot figure out what seating is actually doing tune-wise. Every common notion fails tests. I just know CBTO is the single biggest factor in dialing <1/2moa from a hunting gun/cartridge.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1108573, member: 1521"] I pick what I think is my best prospect in bullet and do full seating testing with that. Where I change bullets I take one of two paths: -If the bullets are like in ogive type(tan to tan, sec to sec), the second bullet begins at the same CBTO as the fully tested bullet. Then I fine tweak test for group shaping. -If the bullets are different in ogive type, I also do full testing with the new bullet. For me so far, bullet weight changes haven't affected best tested seating(coarse). Nor have powder or primer changes. And while I'm off the lands(OTL), throat erosion hasn't mattered, even while a bullet's relationship to lands is changing with use. Given this, I cannot figure out what seating is actually doing tune-wise. Every common notion fails tests. I just know CBTO is the single biggest factor in dialing <1/2moa from a hunting gun/cartridge. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Seating depth sweet spot
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