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9mm Redding Competition Seat Die


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20 hours ago, rooster said:

When loading 9mm after finding your max oal, for that barrel you shorten that by .015, to .020 and call it good. Otherwise you’ll go nuts trying for that perfect oal.

max oal is just short of where you can't spin the round in the chamber because it's touching the lands?

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1 hour ago, davsco said:

max oal is just short of where you can't spin the round in the chamber because it's touching the lands?

 

and/or magazine restriction (usually when loading very long). Sometimes, again rare, length can cause feeding issues. Obviously in this situation selecting an OAL that fixes the problem is required.

 

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Edited by 4n2t0
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  • 1 month later...

Any Seating die will only be as accurate as a seating stem fitted to the bullet profile.

 

The better the seating stem hugs the bullet by Ogive/sides and not touching the tip of the bullet. The better your OAL will be.

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I've had issues with seating depth using the redding comp die only when I didn't pull the stem out and clean off all of the factory rust protectant like the instructions say.  That stuff really makes it sticky and inconsistent.

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