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Trouble bumping shoulder - bad reamer?

 
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  #1  
Old 08-30-2010, 05:34 PM
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Trouble bumping shoulder - bad reamer?

Guys I need help on this on. I have a redding body die for my 7mm Rem Mag. When my headspace measures 2.122 it gets tough to close the bolt. I set the die up by screwing the die down until it contacts the top of the shell holder. I then tighten it down and run a lubed case through it.

The headspace measurement doesn't change after I've run the ram all the way up to the top of a stroke - and my shell holder is hitting the die! So how do I bump my shoulder back .002 if my shell holder is already up against the die and I can't go any further?

Could it be that my gunsmith used a bad reamer? I would like to get my headspace down to 2.119 where it seems to fit just fine. I've also order the redding comp shell holders for the 7mm rm - but obviously it won't matter if I'm already against the die (or will it?)

Any suggestions?
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  #2  
Old 08-30-2010, 05:37 PM
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Re: Trouble bumping shoulder - bad reamer?

No its the die thats the problem. Take off the bottom of the die untill you get the bump and it will fix your problems. It doesnt need to be pretty just enough to get the bump you need. They also make offset shell holders that will help you out.
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Old 08-30-2010, 05:39 PM
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Re: Trouble bumping shoulder - bad reamer?

How should I take of the bottom of the die? Just sand it down? I did order the comp shell holders that are made in .002 increments - will those help?
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Old 08-30-2010, 05:51 PM
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Re: Trouble bumping shoulder - bad reamer?

Wait for the shell holders so you can set it up right and have good shell holder to die contact at the end of the stroke.
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Old 08-30-2010, 05:56 PM
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Re: Trouble bumping shoulder - bad reamer?

You can wait. Sanding off the bottom of the die will not hurt the accuracy of your reloading. It only changes how far it bumps the shoulder. Just make sure you take off enough that it doesnt hit the shell holder anymore after you get enough bump.
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  #6  
Old 08-30-2010, 05:59 PM
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Re: Trouble bumping shoulder - bad reamer?

Got it! Makes sense. Thanks for your help.
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  #7  
Old 08-31-2010, 09:41 AM
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Re: Trouble bumping shoulder - bad reamer?

No problem. You dont need shell holder to die contact but just make sure you dont take a bunch of of it or it wont resize the web of the case enough. Its ok to have .005 or .01 clearance but no more then that.
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