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Rifles, Reloading, Optics, Equipment
Reloading
Belted mag help
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<blockquote data-quote="Bullet bumper" data-source="post: 957229" data-attributes="member: 17844"><p>If you just neck size only eventually the case will get too tight to chamber and in some cases the body of the case will swell in front of the belt and cause hard chambering .</p><p>Sizing to head space on the shoulder is the same as for a non belted rimless round . The problem with the belted case is you have to make sure the body of the case is not jamming in the chamber so you can adjust the sizing die a little at a time on a tight case to just get it back in the chamber .</p><p>The good thing is the belt is always the fall back head space position if you over shoot the shoulder head space position . </p><p>You can't really create a dangerous condition as is possible with a non belted rimless case , the shoulder will mainly blow forward anyway on a belted case .</p><p>There is two dies that will make your life easy . Redding body die number 75136. This die will allow you to size just the body part a bit at a time to head space on the shoulder . </p><p>Larry Willis Innovative Technologies Belted magnum collet sizing die <a href="http://www.larrywillis.com/" target="_blank">Innovative Technologies - Reloading Equipment</a> This die will allow you to size down any potential swelling right at the belt but does not bump the shoulder. This die may not be absolutely required , it all depends on how the chamber is cut and how well the other size die works , like if it gets down low enough . However it's very handy to have to make sure you are feeling head space chambering on the shoulder when you adjust the other die and not jamming on the body above the belt instead.</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 957229, member: 17844"] If you just neck size only eventually the case will get too tight to chamber and in some cases the body of the case will swell in front of the belt and cause hard chambering . Sizing to head space on the shoulder is the same as for a non belted rimless round . The problem with the belted case is you have to make sure the body of the case is not jamming in the chamber so you can adjust the sizing die a little at a time on a tight case to just get it back in the chamber . The good thing is the belt is always the fall back head space position if you over shoot the shoulder head space position . You can't really create a dangerous condition as is possible with a non belted rimless case , the shoulder will mainly blow forward anyway on a belted case . There is two dies that will make your life easy . Redding body die number 75136. This die will allow you to size just the body part a bit at a time to head space on the shoulder . Larry Willis Innovative Technologies Belted magnum collet sizing die [url=http://www.larrywillis.com/]Innovative Technologies - Reloading Equipment[/url] This die will allow you to size down any potential swelling right at the belt but does not bump the shoulder. This die may not be absolutely required , it all depends on how the chamber is cut and how well the other size die works , like if it gets down low enough . However it's very handy to have to make sure you are feeling head space chambering on the shoulder when you adjust the other die and not jamming on the body above the belt instead. [/QUOTE]
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Belted mag help
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