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Rifles, Reloading, Optics, Equipment
Reloading
PPU brass
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<blockquote data-quote="bigedp51" data-source="post: 1730836" data-attributes="member: 28965"><p>If I'm reading this posting right the problem rifle has only 200 rounds through it and the OP has 1200 Prvi cases. Meaning they were fired in the other .243 rifle that has a longer chamber and are springing back more after sizing.</p><p></p><p>Problems:</p><p>You are trying to get cases fired in one rifle to fit in another chamber without using more shoulder bump. and the main problem is not keeping the fired cases separate for each rifles.</p><p></p><p>I buy bulk once fired Lake City 5.56 and 7.62 fired in a multitude of different rifles and machine guns. And the first time I size theses cases I use a small base die and pause at the top of the ram stroke. And I have never had a problem with the cases fitting in three different .223 rifles and two .308 rifles.</p><p></p><p>A small base die will size the cases back to minimum SAAMI dimensions, including pushing the shoulder back more than a standard die.</p><p></p><p>The problem is brass spring back after sizing and not pushing the case shoulder back far enough. I would check the headspace on both rifles and see how far apart they are and see if you can make them match. You could also tell your friend to sell his old .243 rifle and keep the new rifle, and this would solve his problem. And a simple Hornady cartridge case headspace gauge would have solved this problem a long time ago.</p><p></p><p>Below a Lake City 5.56 case that was fired in my AR15 carbine, the die is then adjusted to bump the shoulder back .003.</p><p></p><p><img src="https://i.imgur.com/OJqNmQH.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="bigedp51, post: 1730836, member: 28965"] If I'm reading this posting right the problem rifle has only 200 rounds through it and the OP has 1200 Prvi cases. Meaning they were fired in the other .243 rifle that has a longer chamber and are springing back more after sizing. Problems: You are trying to get cases fired in one rifle to fit in another chamber without using more shoulder bump. and the main problem is not keeping the fired cases separate for each rifles. I buy bulk once fired Lake City 5.56 and 7.62 fired in a multitude of different rifles and machine guns. And the first time I size theses cases I use a small base die and pause at the top of the ram stroke. And I have never had a problem with the cases fitting in three different .223 rifles and two .308 rifles. A small base die will size the cases back to minimum SAAMI dimensions, including pushing the shoulder back more than a standard die. The problem is brass spring back after sizing and not pushing the case shoulder back far enough. I would check the headspace on both rifles and see how far apart they are and see if you can make them match. You could also tell your friend to sell his old .243 rifle and keep the new rifle, and this would solve his problem. And a simple Hornady cartridge case headspace gauge would have solved this problem a long time ago. Below a Lake City 5.56 case that was fired in my AR15 carbine, the die is then adjusted to bump the shoulder back .003. [IMG]https://i.imgur.com/OJqNmQH.jpg[/IMG] [/QUOTE]
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