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
1903A3 reloading trouble
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="FearNoWind" data-source="post: 967212" data-attributes="member: 50867"><p>Most technical data list COAL (from the head of the case to the tip of the bullet).</p><p>The majority of the reloaders I know use the OAL or CBTO (from the ogive tangent to the base of the case) and measure with a Hornady OAL gauge.</p><p></p><p>Read:</p><p><a href="http://www.bergerbullets.com/effects-of-cartridge-over-all-length-coal-and-cartridge-base-to-ogive-cbto-part-2/" target="_blank">Effects of Cartridge Over All Length (COAL) and Cartridge Base To Ogive (CBTO) - Part 2 | Berger BulletsBerger Bullets</a></p><p></p><p>The ogive, put as simply as I can, is that area from the tip of the bullet to the point where the bullet reaches approximately the diameter of the bore.</p><p>Read the link above carefully and you'll see some examples of where the OAL/CBTO and COAL differ, even though the OAL/CBTO (from the ogive tangent to the base of the case) for both loaded rounds are identical.</p><p>There is nothing inferior about the dies you're using. RCBS makes very good stuff.</p><p>Based on what you've added regarding the setup, I'd suggest resetting the die as suggested (<u>about</u> 1/8 turn beyond the ram/die contact point) or just enough to know that the full stroke "cams" over (it'll give a slight click). That takes care of any slop in the threads where the die mates with the press.</p><p>I disagree with some of the notes here about .010 short not affecting the ability of the round to load properly. With a case shoulder, it's not as much about length as it is about angle and if you're .010 short your shoulder angle is also out of sync. with the chamber shoulder angle and it sure as heck could be your problem.</p><p></p><p>Some more reading that might help:</p><p><a href="http://www.accurateshooter.com/ballistics/tangent-vs-secant-vs-hybrid-ogive-bullets/" target="_blank">http://www.accurateshooter.com/ballistics/tangent-vs-secant-vs-hybrid-ogive-bullets/</a></p></blockquote><p></p>
[QUOTE="FearNoWind, post: 967212, member: 50867"] Most technical data list COAL (from the head of the case to the tip of the bullet). The majority of the reloaders I know use the OAL or CBTO (from the ogive tangent to the base of the case) and measure with a Hornady OAL gauge. Read: [URL="http://www.bergerbullets.com/effects-of-cartridge-over-all-length-coal-and-cartridge-base-to-ogive-cbto-part-2/"]Effects of Cartridge Over All Length (COAL) and Cartridge Base To Ogive (CBTO) - Part 2 | Berger BulletsBerger Bullets[/URL] The ogive, put as simply as I can, is that area from the tip of the bullet to the point where the bullet reaches approximately the diameter of the bore. Read the link above carefully and you'll see some examples of where the OAL/CBTO and COAL differ, even though the OAL/CBTO (from the ogive tangent to the base of the case) for both loaded rounds are identical. There is nothing inferior about the dies you're using. RCBS makes very good stuff. Based on what you've added regarding the setup, I'd suggest resetting the die as suggested ([U]about[/U] 1/8 turn beyond the ram/die contact point) or just enough to know that the full stroke "cams" over (it'll give a slight click). That takes care of any slop in the threads where the die mates with the press. I disagree with some of the notes here about .010 short not affecting the ability of the round to load properly. With a case shoulder, it's not as much about length as it is about angle and if you're .010 short your shoulder angle is also out of sync. with the chamber shoulder angle and it sure as heck could be your problem. Some more reading that might help: [URL]http://www.accurateshooter.com/ballistics/tangent-vs-secant-vs-hybrid-ogive-bullets/[/URL] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
1903A3 reloading trouble
Top