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Old November 8, 2011, 11:11 PM   #1
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.223 trimming - acceptable tolerances?

Prepping 600 LC .223 brass.
After depriming and sizing, used the RCBS Trim Pro.
Most (90+%) measured 1.750" - 1.751"; a few were 1.749" and 1.752".
What, if any, is the generally accepted tolerance for OAL?
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Old November 8, 2011, 11:21 PM   #2
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They all look fine, unless you are match shooting. Just don't get anymore below the 1.749. Regular plinking will be fine, if you are shooting out of a semi-auto its gonna stretch out the next time anyway.
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Old November 9, 2011, 12:08 AM   #3
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Unless you plan to crimp, I don't worry too much about exactly hitting the min spec on trimming without going below. If you were using and RCBS X die, you would trim to 1.740" initially. At worst you are losing a very tiny bit of neck tension. The minor variation you see is common when trimming.
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Old November 9, 2011, 01:13 AM   #4
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I'm with jepp2.
The variances you're seeing are normal.
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Old November 9, 2011, 01:22 AM   #5
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IIRC min length is 1.740" and max is 1.760".
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Old November 9, 2011, 08:44 AM   #6
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Should work without a problem, but I would be more concerned with where the shoulder came to.

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