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
Trimming cases
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="AZShooter" data-source="post: 1488816" data-attributes="member: 5219"><p>Point of interest..... many factory/sammi chambers incorporate quite a bit of space to the end of the chamber. I suppose it is for any variables found in some manufacturers ammo, who knows for sure.</p><p></p><p> I have measured several Factory chambers that were in the .050"-.070" range. Typically you can go several firings/sizing cycles before the brass gets close. It is conceivable that you could wear out the brass before you need to trim it! What I am saying if you KNOW the distance to the end of the chamber you can forgo trimming for quite a while.</p><p></p><p>If you or a gunsmith used a custom reamer you can use the specs to know where the end of the chamber without measuring.</p><p></p><p>To measure the distance to the end of the chamber you will need a Sinclair chamber length gauge:</p><p></p><p><a href="https://www.sinclairintl.com/reloading-equipment/measuring-tools/case-gauges-headspace-tools/sinclair-chamber-length-gage-prod32925.aspx" target="_blank">https://www.sinclairintl.com/reloading-equipment/measuring-tools/case-gauges-headspace-tools/sinclair-chamber-length-gage-prod32925.aspx</a></p><p></p><p>video on using the chamber gauge</p><p>[MEDIA=youtube]JKnXJxaAw2U[/MEDIA]</p><p></p><p>If you have access to a lathe you can make your own gauges. This information is from Varmint Al's website (thanks Al):</p><p><a href="https://www.varmintal.com/alath.htm#Chamber_Length_Gauge" target="_blank">https://www.varmintal.com/alath.htm#Chamber_Length_Gauge</a></p><p></p><p>I use my lathe for trimming my cases. Use a cartridge holder I salvaged from an old Lyman case trimmer held in the jaws for the lathe. Use a stop for the carriage.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1488816, member: 5219"] Point of interest..... many factory/sammi chambers incorporate quite a bit of space to the end of the chamber. I suppose it is for any variables found in some manufacturers ammo, who knows for sure. I have measured several Factory chambers that were in the .050"-.070" range. Typically you can go several firings/sizing cycles before the brass gets close. It is conceivable that you could wear out the brass before you need to trim it! What I am saying if you KNOW the distance to the end of the chamber you can forgo trimming for quite a while. If you or a gunsmith used a custom reamer you can use the specs to know where the end of the chamber without measuring. To measure the distance to the end of the chamber you will need a Sinclair chamber length gauge: [URL]https://www.sinclairintl.com/reloading-equipment/measuring-tools/case-gauges-headspace-tools/sinclair-chamber-length-gage-prod32925.aspx[/URL] video on using the chamber gauge [MEDIA=youtube]JKnXJxaAw2U[/MEDIA] If you have access to a lathe you can make your own gauges. This information is from Varmint Al's website (thanks Al): [URL]https://www.varmintal.com/alath.htm#Chamber_Length_Gauge[/URL] I use my lathe for trimming my cases. Use a cartridge holder I salvaged from an old Lyman case trimmer held in the jaws for the lathe. Use a stop for the carriage. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Trimming cases
Top