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
what to do with cases with excessive neck run out?
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="Mikecr" data-source="post: 592915" data-attributes="member: 1521"><p>Neck turning only gets a small portion of the case uniform. The rest of that case length is still not uniform, and this combined with cycling of it(sizing/firing), allows cases to end up bananas as measured on a runout gage.</p><p>Now if you didn't size all that length, fireforming would put it fairley straight where it would remain so. But I suspect you will have to FL size those cases eventually and from then onward.</p><p>This is why I think you should measure thickness variance(as seen in the necks), and keep only cases under 1thou in 360deg variance. You need a ball mic with a stop for this.</p><p>These would be cases to further prep, and neck turn.</p><p></p><p>I **** sure wouldn't generalize capacity by Remington brass weight..</p><p>After prepped, fully fireformed, & before any sizing, just measure it's H20 capacity and again cull offenders.</p><p>I imagine Rem brass is dirt cheap and would consider it disposable. And matched brass is gold regardless of brand, so you've got nothing to lose really.</p><p></p><p>I agree with frank7mm about the Sinclair expander die system. It is by far the best expansion short of fireforming.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 592915, member: 1521"] Neck turning only gets a small portion of the case uniform. The rest of that case length is still not uniform, and this combined with cycling of it(sizing/firing), allows cases to end up bananas as measured on a runout gage. Now if you didn't size all that length, fireforming would put it fairley straight where it would remain so. But I suspect you will have to FL size those cases eventually and from then onward. This is why I think you should measure thickness variance(as seen in the necks), and keep only cases under 1thou in 360deg variance. You need a ball mic with a stop for this. These would be cases to further prep, and neck turn. I **** sure wouldn't generalize capacity by Remington brass weight.. After prepped, fully fireformed, & before any sizing, just measure it's H20 capacity and again cull offenders. I imagine Rem brass is dirt cheap and would consider it disposable. And matched brass is gold regardless of brand, so you've got nothing to lose really. I agree with frank7mm about the Sinclair expander die system. It is by far the best expansion short of fireforming. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
what to do with cases with excessive neck run out?
Top