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
reloading for accuracy questions
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="WalksLikeADeer" data-source="post: 1376006" data-attributes="member: 94603"><p>Steve, to answer your question, the reason we use .002" shoulder bump rather than .0005" is to allow for the variances in sized brass. Some will be a little more, some a little less. This will allow for consistent reliable chambering. Size 10 pieces and measure them with a comparator and you will see what I mean. Trying to set every shoulder back to exactly .0005" would make your engineering mind explode!</p><p></p><p>If you trim or check length every time, the neck flowing so long that it crimps the bullet in the chamber is not even a thing.</p><p></p><p>I neck turn new brass after the first firing, anneal every firing, full length size and bump the shoulder with a Redding body die, and neck size with the Lee collet die.</p><p></p><p>The Lee collet die concentrically sizes the inside of the neck by compressing it against a mandrel giving consistent neck tension. The Redding competition type S bushing die is also a good option and will save a step.</p><p></p><p>Good luck.You'll figure out what works for you and your application.</p></blockquote><p></p>
[QUOTE="WalksLikeADeer, post: 1376006, member: 94603"] Steve, to answer your question, the reason we use .002" shoulder bump rather than .0005" is to allow for the variances in sized brass. Some will be a little more, some a little less. This will allow for consistent reliable chambering. Size 10 pieces and measure them with a comparator and you will see what I mean. Trying to set every shoulder back to exactly .0005" would make your engineering mind explode! If you trim or check length every time, the neck flowing so long that it crimps the bullet in the chamber is not even a thing. I neck turn new brass after the first firing, anneal every firing, full length size and bump the shoulder with a Redding body die, and neck size with the Lee collet die. The Lee collet die concentrically sizes the inside of the neck by compressing it against a mandrel giving consistent neck tension. The Redding competition type S bushing die is also a good option and will save a step. Good luck.You'll figure out what works for you and your application. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
reloading for accuracy questions
Top