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
Do you seat your bullet to OAL or ogive length
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="Fitch" data-source="post: 370285" data-attributes="member: 19372"><p>It probably won't be the last time either. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> But I learn something each time.</p><p> </p><p></p><p> </p><p>We are on the same page so far. </p><p> </p><p></p><p> </p><p>Yup. </p><p> </p><p></p><p> </p><p>Yup. The shiny stainless Sinclair nut. I use it to measure the round I create based on measurements using the rod with two sliding collars. </p><p> </p><p>I also, when I've chambered the rifle myself, made a replacement for "the nut" by throating a cutoff piece of barrel with the chambering reamer. </p><p> </p><p></p><p> </p><p>Some boxes of bullets will exhibit a noticable variation in base to ogive distance, sometimes several thousandts. This is variation within a box of the same bullets. That happens only because of shape variations. It is why measuring to the ogive makes more sense than using OAL. </p><p> </p><p>In a perfect world the seating stem would only contact the bullet in the exact same place as the chamber throat resulting in the exact same jump for every cartridge. Alas, seating stems don't do that so one makes an allowance for this by making sure the variation won't put the ogive in contact with the lands by accident. That was my whole point. </p><p> </p><p>One way around this variation, if one cares to zero it out, is to measure all the bullets in a box, sort them into groups, and adjust the seating die when changing groups. I don't do that. As long as the jump doesn't go to zero, or under .010", my rifles seem to shoot just fine. I'm hunting, not shooting benchrest.</p><p> </p><p>I didn't think this was such radical thinking, I still don't. </p><p> </p><p>Oh well ...</p><p> </p><p>Fitch</p></blockquote><p></p>
[QUOTE="Fitch, post: 370285, member: 19372"] It probably won't be the last time either. :D But I learn something each time. We are on the same page so far. Yup. Yup. The shiny stainless Sinclair nut. I use it to measure the round I create based on measurements using the rod with two sliding collars. I also, when I've chambered the rifle myself, made a replacement for "the nut" by throating a cutoff piece of barrel with the chambering reamer. Some boxes of bullets will exhibit a noticable variation in base to ogive distance, sometimes several thousandts. This is variation within a box of the same bullets. That happens only because of shape variations. It is why measuring to the ogive makes more sense than using OAL. In a perfect world the seating stem would only contact the bullet in the exact same place as the chamber throat resulting in the exact same jump for every cartridge. Alas, seating stems don't do that so one makes an allowance for this by making sure the variation won't put the ogive in contact with the lands by accident. That was my whole point. One way around this variation, if one cares to zero it out, is to measure all the bullets in a box, sort them into groups, and adjust the seating die when changing groups. I don't do that. As long as the jump doesn't go to zero, or under .010", my rifles seem to shoot just fine. I'm hunting, not shooting benchrest. I didn't think this was such radical thinking, I still don't. Oh well ... Fitch [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Do you seat your bullet to OAL or ogive length
Top