300Whisper in the AR-15 - Quarterbore's Forums

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300Whisper in the AR-15

03-11-2010, 03:57 AM

Fritzcat

Senior Member

Join Date: Oct 2009

Location: Tyler,Tx.

Posts: 133

Is it carbine gas port position? List the Loads you have tried. The 220gr should be no problem, but the 168gr will unless it is in pistol port position. Sierra list data for 1680, a sure deal and slow burning powder. If you have Win 296 or Lil-Gun on hand, these should work, but are faster burning and a little quieter.

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