Thread: 300 Blackout/300 Whisper Reloading
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  #22  
Old 01-13-2011, 08:50 PM
rsilvers rsilvers is offline
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Join Date: Mar 2010
Posts: 482
The BLACKOUT throat is why it can have higher velocity with 125 grain bullets.

Likewise, that is why 6.8 SPC-II can be faster than 6.8 and 5.56mm can be faster than 223 - even with short/light bullets.
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