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
Gunsmithing
Polish Chamber In New Barrel
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="J E Custom" data-source="post: 1332868" data-attributes="member: 2736"><p>A very good question that is often ask Edd !</p><p></p><p>The reamed finish Is going away the best for many reasons.</p><p></p><p>First = The chamber dimensions are the truest as cut. Polishing will/can alter these dimension from the reamer. ( I have had to set back chambers that were polished because of ejection problems).</p><p></p><p>Next = The polished chamber will not grip the cartridge as well and can cause excessive bolt thrust/loading. (This can sometimes cause pressure signs early that Indicate excessive pressure that Is non existent by allowing the case head to be forced against the bolt face harder than normal).</p><p></p><p>In My opinion, A chamber that needs polishing, was ether a dull reamer or a poorly cut one by the smith. (Wrong spindle speed, dull reamer, feeding the reamer to fast, Not cleaning the reamer often enough, ETC.</p><p></p><p>If your chamber does not leave any marks on the fired brass and extracts well the reamer finish is fine.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1332868, member: 2736"] A very good question that is often ask Edd ! The reamed finish Is going away the best for many reasons. First = The chamber dimensions are the truest as cut. Polishing will/can alter these dimension from the reamer. ( I have had to set back chambers that were polished because of ejection problems). Next = The polished chamber will not grip the cartridge as well and can cause excessive bolt thrust/loading. (This can sometimes cause pressure signs early that Indicate excessive pressure that Is non existent by allowing the case head to be forced against the bolt face harder than normal). In My opinion, A chamber that needs polishing, was ether a dull reamer or a poorly cut one by the smith. (Wrong spindle speed, dull reamer, feeding the reamer to fast, Not cleaning the reamer often enough, ETC. If your chamber does not leave any marks on the fired brass and extracts well the reamer finish is fine. J E CUSTOM [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
Polish Chamber In New Barrel
Top