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
Question about custom dies
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="dkhunt14" data-source="post: 999468" data-attributes="member: 14053"><p>I shoot Bat M actions with the big lugs and big tenon. So the tenon isn't the problem. The problem is when the chamber is smaller then the die. Some gunsmiths order the wrong reamer or get one with a tight at the .200 line reamer to try and keep primer pockets. Then they minimum headspace the gun and now the die won't size the case at the .200 line. The die needs to size this .001 if your going to run near max loads. Sammi dies won't touch them there. And if the die doesn't size them there you end up with the click. A hot load will lift hard from the start of the bolt lift because the whole case is tight in the chamber. The click is only the back of the case is tight. My first WSM was done with a die that was .002 under at the .200 line and after the first firing you would get the click. I had to get a special die to size the case there for those 2 guns. My next reamer was a .001 bigger and it still isn't enough for a factory die. If you spin the barrel in the lathe and remove a hair from the back end of the chamber it will go away. I measure my pressure by how much the extractor groove moves on a firing. Also if the primers are round on the edges you are not overpressure. Matt</p></blockquote><p></p>
[QUOTE="dkhunt14, post: 999468, member: 14053"] I shoot Bat M actions with the big lugs and big tenon. So the tenon isn't the problem. The problem is when the chamber is smaller then the die. Some gunsmiths order the wrong reamer or get one with a tight at the .200 line reamer to try and keep primer pockets. Then they minimum headspace the gun and now the die won't size the case at the .200 line. The die needs to size this .001 if your going to run near max loads. Sammi dies won't touch them there. And if the die doesn't size them there you end up with the click. A hot load will lift hard from the start of the bolt lift because the whole case is tight in the chamber. The click is only the back of the case is tight. My first WSM was done with a die that was .002 under at the .200 line and after the first firing you would get the click. I had to get a special die to size the case there for those 2 guns. My next reamer was a .001 bigger and it still isn't enough for a factory die. If you spin the barrel in the lathe and remove a hair from the back end of the chamber it will go away. I measure my pressure by how much the extractor groove moves on a firing. Also if the primers are round on the edges you are not overpressure. Matt [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Question about custom dies
Top