Forum: 300 Whisper Ammo and Reloading
07-23-2012, 07:13 AM
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Replies: 9
Views: 3,238
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Forum: 300 Whisper Ammo and Reloading
07-18-2012, 07:35 AM
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Replies: 9
Views: 3,238
The shoulder of the 300 blk is .004" wider than...
The shoulder of the 300 blk is .004" wider than the 30/221. The original ptg 30/221 is .006" wider. I have all 3 reamers. Big deal is the throat of the 300 blk is deeper. Measured about .100 deeper...
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