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
Forming 338 edge from 375 brass.
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="Deleted member 46119" data-source="post: 1363280"><p>I have a 338 Edge.</p><p>I've done a lot of necking up and down.</p><p></p><p>I'm on my 5th firing of my R-P Edge brass formed from 300 RUM. I have to do something soon. So...</p><p></p><p>I bought some Atlas DG brass instead. Mine just came and it looks really good. Basically $2 each. If you would like to go down that route, PM me.</p><p></p><p>Now on to your project. Forgive me if you know some of this stuff. I'm just trying to be complete.</p><p></p><p>1) As you size down the neck will get thicker. Neck turning is required.</p><p>2) Neck turning before sizing all the way down will make that task easier and less likely to have the dreaded doughnut.</p><p>3) Annealing is a must.</p><p>4) Neck down in about .020 steps annealing every other step. </p><p></p><p>The necks should start at .016 thick +-.002, so..</p><p>.375+.016+.016 = .407 The actual specification is .405</p><p></p><p>For your first pass, a .390 bushing. </p><p>Then anneal.</p><p>Second pass .370 bushing.</p><p>Your ID now should be about .339 with a neck thickness of .018 +.000-.002.</p><p>Neck turn to a thickness of .015 +-.001. Your OD should now be .373</p><p>Anneal</p><p>Final sizing with a .362 bushing and a .336 expander ball. This should result in a .334 +-.001 neck ID.</p><p></p><p>These dimensions will all work. Someone else may suggest different dimensions for the bushings but they won't be far off. Take their advice as you will. I'm not perfect just experienced and prefer to do as few passes as possible. I would suggest you add the salt of: do they have a 338 Edge, have they done that sort of necking down.</p><p></p><p>I recommend a couple spare bushings. Personally I buy +-.001 of each. That winds up being lots of $$.</p><p></p><p>All those bushings will add up to quite a bit of money. Getting quality brass for less than $3 would probably save money in the long run.</p></blockquote><p></p>
[QUOTE="Deleted member 46119, post: 1363280"] I have a 338 Edge. I've done a lot of necking up and down. I'm on my 5th firing of my R-P Edge brass formed from 300 RUM. I have to do something soon. So... I bought some Atlas DG brass instead. Mine just came and it looks really good. Basically $2 each. If you would like to go down that route, PM me. Now on to your project. Forgive me if you know some of this stuff. I'm just trying to be complete. 1) As you size down the neck will get thicker. Neck turning is required. 2) Neck turning before sizing all the way down will make that task easier and less likely to have the dreaded doughnut. 3) Annealing is a must. 4) Neck down in about .020 steps annealing every other step. The necks should start at .016 thick +-.002, so.. .375+.016+.016 = .407 The actual specification is .405 For your first pass, a .390 bushing. Then anneal. Second pass .370 bushing. Your ID now should be about .339 with a neck thickness of .018 +.000-.002. Neck turn to a thickness of .015 +-.001. Your OD should now be .373 Anneal Final sizing with a .362 bushing and a .336 expander ball. This should result in a .334 +-.001 neck ID. These dimensions will all work. Someone else may suggest different dimensions for the bushings but they won't be far off. Take their advice as you will. I'm not perfect just experienced and prefer to do as few passes as possible. I would suggest you add the salt of: do they have a 338 Edge, have they done that sort of necking down. I recommend a couple spare bushings. Personally I buy +-.001 of each. That winds up being lots of $$. All those bushings will add up to quite a bit of money. Getting quality brass for less than $3 would probably save money in the long run. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Forming 338 edge from 375 brass.
Top