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
Hunting
Long Range Hunting & Shooting
Re-starting Reloading for my 300 Wby
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="Bang4theBuck" data-source="post: 3021239" data-attributes="member: 73596"><p>Happy,</p><p></p><p>When you fire a cartridge it grows in almost every direction and it swells to fit.the chamber that it was fired in (referred to as fire-forming). When you full length size a case, the die acts upon the fired case innthe following ways:</p><p>1. Usually deprimes the case.</p><p>2. It resizes the neck to the size of the expander ball that is onnthe recapping rod, or to neck bushing die, if you're using those type of dies.</p><p>3. It pushes the body of the die back into specs to be rechambered.</p><p>4. At the very end of the work stroke into the die, the die pushes the shoulders of the case back, so that it will fit (for length) when chambered next time. </p><p>If you follow the instructions that come with the dies, they will almost always result in a condition where you have sized the case more than necessary. The dies are design to resize the case so it will fit in any rifle of that same cartridge. What this does, however, is it overworks the brass, and it reduces the efficiency a little on the cartridge because next.time you fire it, the first bit of work the powder expansion does is to swell the case back to fit the chamber, and not necessarily to begin propelling the bullet. </p><p></p><p>In the case of a 300 WBY there are no issues with propelling the bullet and 'efficiency' wasn't at all what Roy had in mind, but for a reloader in today's market, preserving brass and other components by finding the load quicker and not overworking brass is a worthwhile endeavor. </p><p></p><p>This change in approach only requires a one-time adjustment to your die depth setting. I am happy to help you figure out and execute that. Just reach out via Private Message.</p></blockquote><p></p>
[QUOTE="Bang4theBuck, post: 3021239, member: 73596"] Happy, When you fire a cartridge it grows in almost every direction and it swells to fit.the chamber that it was fired in (referred to as fire-forming). When you full length size a case, the die acts upon the fired case innthe following ways: 1. Usually deprimes the case. 2. It resizes the neck to the size of the expander ball that is onnthe recapping rod, or to neck bushing die, if you're using those type of dies. 3. It pushes the body of the die back into specs to be rechambered. 4. At the very end of the work stroke into the die, the die pushes the shoulders of the case back, so that it will fit (for length) when chambered next time. If you follow the instructions that come with the dies, they will almost always result in a condition where you have sized the case more than necessary. The dies are design to resize the case so it will fit in any rifle of that same cartridge. What this does, however, is it overworks the brass, and it reduces the efficiency a little on the cartridge because next.time you fire it, the first bit of work the powder expansion does is to swell the case back to fit the chamber, and not necessarily to begin propelling the bullet. In the case of a 300 WBY there are no issues with propelling the bullet and 'efficiency' wasn't at all what Roy had in mind, but for a reloader in today's market, preserving brass and other components by finding the load quicker and not overworking brass is a worthwhile endeavor. This change in approach only requires a one-time adjustment to your die depth setting. I am happy to help you figure out and execute that. Just reach out via Private Message. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Re-starting Reloading for my 300 Wby
Top