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Subsonic 175s over Red Dot for 10.5" pistol gas?

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#11

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10-25-2010, 11:10 PM

320pf

320pf is offline

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Join Date: Jun 2006

Posts: 304

the fastest powder for a 300-221 fireball

In an AR, the fastest powder that will work in the AR platform has a burn rate in the 2400-AA#9 range. LilGun and N110 also will work well in sub-sonics.

You can find more information on the optimum powders for sub-sonic loads... Unfortunately, you will have to read through the post under the 300 Whisper reloading heading on this site to find all the the information.

320pf

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