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Rifles, Reloading, Optics, Equipment
Reloading
problem bumping shoulder back
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<blockquote data-quote="dmax1800" data-source="post: 960027" data-attributes="member: 68255"><p>I am somewhat new to reloading and you must know a ton more than I do, so I'll bow to your knowledge and experience.</p><p>Here's all I know.</p><p></p><p>I annealed the 90 brass in early January in preparation for getting the gun back from a gunsmith with a new barrel. The brass did chamber in the new barrel with no problems, so I continued to use it.</p><p></p><p>I loaded some of the brass sometime around March and was able to bump the shoulder back 2 to 3 thou. I loaded some more sometime in April and again was able to bump the shoulder. I used the remaining brass in early May. On Wednesday I was out of brass, so I de-primed the batch with a de-capping die, ran it thru a vibrator with walnut media, run it thru a sonic cleaner and started to size the brass in preparation for trimming it when I couldn't bump the shoulder back. That's when I turned to this forum for help.</p><p></p><p>My dies have stayed the same, I use the same shell holder, the same press, the same head space gauge and the same process of setting up the sizing die (ie setting the die up for 2 to 3 thou of bump).</p><p></p><p>My intent is NOT to argue with you, but I can't figure out what would have changed in my setup. If you have any ideas, I'm all ears and would appreciate any suggestions.</p></blockquote><p></p>
[QUOTE="dmax1800, post: 960027, member: 68255"] I am somewhat new to reloading and you must know a ton more than I do, so I'll bow to your knowledge and experience. Here's all I know. I annealed the 90 brass in early January in preparation for getting the gun back from a gunsmith with a new barrel. The brass did chamber in the new barrel with no problems, so I continued to use it. I loaded some of the brass sometime around March and was able to bump the shoulder back 2 to 3 thou. I loaded some more sometime in April and again was able to bump the shoulder. I used the remaining brass in early May. On Wednesday I was out of brass, so I de-primed the batch with a de-capping die, ran it thru a vibrator with walnut media, run it thru a sonic cleaner and started to size the brass in preparation for trimming it when I couldn't bump the shoulder back. That's when I turned to this forum for help. My dies have stayed the same, I use the same shell holder, the same press, the same head space gauge and the same process of setting up the sizing die (ie setting the die up for 2 to 3 thou of bump). My intent is NOT to argue with you, but I can't figure out what would have changed in my setup. If you have any ideas, I'm all ears and would appreciate any suggestions. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
problem bumping shoulder back
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