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
How many uses factory crimps
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="RT2506" data-source="post: 1557661" data-attributes="member: 10178"><p>I use the Lee Factory Crimp in all my semi auto rifles as well as most of my old military rifles that have a throat a mile long. I have discovered through trials that using a medium crimp, by that I mean this. Set the crimp die up so that as you look in the top of it without a round in the die you adjust the crimp fingers so they close about half way between full and no movement. This holds the bullets secure without squishing the bullet much if any. This has also greatly increased the accuracy in many of the old military rifles that I shoot. My theory is that with the long throats most of these rifles have it causes the bullet to be held in the case long enough for proper burn and pressure rise for making best accuracy much the same way that a bullet that is loaded closer to the lands is slowed up for just a split second before the base leaves the case and allows the same pressure rise. What ever it does the same rounds shoot much better with the crimp verses non crimp. Using the bushing type dies getting the "proper neck tension" basically does the same thing. I have really never had any problems with bullet pull or push back into the case on my rifles. Probably do have proper neck tension, blind hog finds an acorn effect, or most often the case is full or powder and will not allow the bullet to move deeper. I have had rounds that the nose has been battered but bullet has not moved. The only way to know what will work best for you is give it a try. Good Luck.</p></blockquote><p></p>
[QUOTE="RT2506, post: 1557661, member: 10178"] I use the Lee Factory Crimp in all my semi auto rifles as well as most of my old military rifles that have a throat a mile long. I have discovered through trials that using a medium crimp, by that I mean this. Set the crimp die up so that as you look in the top of it without a round in the die you adjust the crimp fingers so they close about half way between full and no movement. This holds the bullets secure without squishing the bullet much if any. This has also greatly increased the accuracy in many of the old military rifles that I shoot. My theory is that with the long throats most of these rifles have it causes the bullet to be held in the case long enough for proper burn and pressure rise for making best accuracy much the same way that a bullet that is loaded closer to the lands is slowed up for just a split second before the base leaves the case and allows the same pressure rise. What ever it does the same rounds shoot much better with the crimp verses non crimp. Using the bushing type dies getting the "proper neck tension" basically does the same thing. I have really never had any problems with bullet pull or push back into the case on my rifles. Probably do have proper neck tension, blind hog finds an acorn effect, or most often the case is full or powder and will not allow the bullet to move deeper. I have had rounds that the nose has been battered but bullet has not moved. The only way to know what will work best for you is give it a try. Good Luck. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
How many uses factory crimps
Top