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 tips?
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="Oldtime Shooter13" data-source="post: 2317161" data-attributes="member: 109503"><p>I am not a fan of trimming! It is a necessity, but not a must do until your reach Max Case OAL. I measure to make sure my fired/sized cases are within a tolerance each firing. If you are shooting the 30 or 40 degree shoulder cartridges then you will trim much less. One of two reasons I changed fro 243 Win to 6 CM. The other is factory twist rate in 6CM. Another discussion! </p><p></p><p>I shoot the same cases for load development over and over. I trim when they start reaching max case length back to min case length (SAMI). I always 30 Degree chamfer inside case mouth and desire outside case neck. If I am shooting the same cases with the same charge my cases rarely grow more that .001 if at all. </p><p></p><p>The only cases that I am very fussy about is 45ACP. This Cartridge headspace off of the case mouth and must be as near perfect as you can get. Hate trimming 45ACP, but it is a must.</p><p></p><p>Lastly strait wall cases is also important to have case OAL the same due to crimping. You also must use caution to not allowed to grow into the forcing cone! Pressure can become erratic and cause spikes. </p><p></p><p>I use LE Wilson trimmer on everything except 45</p><p>ACP. Pain in the butt to trim 45 ACP in LE Wilson! I use my old Lyman trimmer for 45 ACP.</p></blockquote><p></p>
[QUOTE="Oldtime Shooter13, post: 2317161, member: 109503"] I am not a fan of trimming! It is a necessity, but not a must do until your reach Max Case OAL. I measure to make sure my fired/sized cases are within a tolerance each firing. If you are shooting the 30 or 40 degree shoulder cartridges then you will trim much less. One of two reasons I changed fro 243 Win to 6 CM. The other is factory twist rate in 6CM. Another discussion! I shoot the same cases for load development over and over. I trim when they start reaching max case length back to min case length (SAMI). I always 30 Degree chamfer inside case mouth and desire outside case neck. If I am shooting the same cases with the same charge my cases rarely grow more that .001 if at all. The only cases that I am very fussy about is 45ACP. This Cartridge headspace off of the case mouth and must be as near perfect as you can get. Hate trimming 45ACP, but it is a must. Lastly strait wall cases is also important to have case OAL the same due to crimping. You also must use caution to not allowed to grow into the forcing cone! Pressure can become erratic and cause spikes. I use LE Wilson trimmer on everything except 45 ACP. Pain in the butt to trim 45 ACP in LE Wilson! I use my old Lyman trimmer for 45 ACP. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Trimming tips?
Top