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
Rifles, Bullets, Barrels & Ballistics
Tight neck chamber
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="joep17" data-source="post: 1407229" data-attributes="member: 1457"><p>What a great topic and a can of worms with 17 ways to look at this.</p><p></p><p>For hunting rifles I never do a "tight" neck. However is do clean up all necks to get more consistent neck tension. Regular loading dies so weird things as you pull the case back down through the expander. Stretching the case, expander ball off center and more.</p><p></p><p>For competition rifles I turn necks, use a bump die with inserts for that particular chamber like forester (they are available in 0.001 increments) and then use a 21 century expander to get consistent neck tension and concentricity. This is for competition rifles.</p><p></p><p>For example, my f Class 308 has a 338 neck reamer. For my shooting, I make ammo for a completed 334 diameter </p><p></p><p>I take Lapua brass, neck turn to 0.013" inch per side with a Sinclair tool and can only be measured well with a good ball micrometer.</p><p></p><p>Then I use a 0.330 forester bushing, and then run a 21 Centuryexpander mandrel. Is it perfect? Probably not but works for me. Consistent neck tension and concentricity is paramount to long range accuracy</p><p></p><p>Tight chambers have a place in precision rifles. I pick my spots carefully </p><p></p><p>For hunting rifles I tend to be more careful.</p><p></p><p>Hope this helps and it is only my experience and where I landed after years of experimenting.</p><p></p><p>My other advice is that if you go down this route, buy your own reamer and take it to the smith for your barrels only. Mine just cut it's 5th chamber and I am wondering how long until I need another one.</p></blockquote><p></p>
[QUOTE="joep17, post: 1407229, member: 1457"] What a great topic and a can of worms with 17 ways to look at this. For hunting rifles I never do a "tight" neck. However is do clean up all necks to get more consistent neck tension. Regular loading dies so weird things as you pull the case back down through the expander. Stretching the case, expander ball off center and more. For competition rifles I turn necks, use a bump die with inserts for that particular chamber like forester (they are available in 0.001 increments) and then use a 21 century expander to get consistent neck tension and concentricity. This is for competition rifles. For example, my f Class 308 has a 338 neck reamer. For my shooting, I make ammo for a completed 334 diameter I take Lapua brass, neck turn to 0.013" inch per side with a Sinclair tool and can only be measured well with a good ball micrometer. Then I use a 0.330 forester bushing, and then run a 21 Centuryexpander mandrel. Is it perfect? Probably not but works for me. Consistent neck tension and concentricity is paramount to long range accuracy Tight chambers have a place in precision rifles. I pick my spots carefully For hunting rifles I tend to be more careful. Hope this helps and it is only my experience and where I landed after years of experimenting. My other advice is that if you go down this route, buy your own reamer and take it to the smith for your barrels only. Mine just cut it's 5th chamber and I am wondering how long until I need another one. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Tight neck chamber
Top