Thread: rechambering?
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Old January 18, 2014, 10:07 PM   #4
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Join Date: September 19, 2008
Posts: 4,678

Welcome to TFL !

Short answer: "No".

Rechambering is only successful when the new reamer is larger than, and will totally clean up the existing chamber - IOW, the rechambering must be for a larger cartridge, not smaller.

The .300 Winchester Magnum:

Has a larger/fatter case than the .30-06

Has a (larger) belted case - which in turn requires the bolt face be larger than a .30-06 boltface.

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