Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Reloading
seating depth problem
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Mikecr" data-source="post: 643055" data-attributes="member: 1521"><p>The video illustrates a real problem for seating and other bullet measurements(like bearing comparisons), which is ogive radius variance. You can address this by qualifying ogive radius on your bullets right up front, like he was doing, or with a Bob Green bullet comparator(made just for this).</p><p></p><p>Missing from the video was realities associated with nose datum affects to consistent measurements. We all want land contact point consistent, but this is not always the best datum for good measurements, as it is also not a best contact for seater stems.</p><p></p><p>The stem that caused 14thou of contact difference was poorly suited for those bullets, as this is beyond affects of ogive radius variance -that low on the noses. But still, it's refreshing to see someone investigate the problem like he did.</p><p>Smaller differences are common in-lot, larger lot to lot.</p><p></p><p>Be careful not to refer to an 'ogive' as though it is the land contact point(that's not what ogive means). To date there is no such point established as a standard, and it will always vary locally.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 643055, member: 1521"] The video illustrates a real problem for seating and other bullet measurements(like bearing comparisons), which is ogive radius variance. You can address this by qualifying ogive radius on your bullets right up front, like he was doing, or with a Bob Green bullet comparator(made just for this). Missing from the video was realities associated with nose datum affects to consistent measurements. We all want land contact point consistent, but this is not always the best datum for good measurements, as it is also not a best contact for seater stems. The stem that caused 14thou of contact difference was poorly suited for those bullets, as this is beyond affects of ogive radius variance -that low on the noses. But still, it's refreshing to see someone investigate the problem like he did. Smaller differences are common in-lot, larger lot to lot. Be careful not to refer to an 'ogive' as though it is the land contact point(that's not what ogive means). To date there is no such point established as a standard, and it will always vary locally. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
seating depth problem
Top