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300Blk
PostPosted: Wed Jul 06, 2011 1:30 pm 
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This is from Ramshot.Accurate.Powders / WesternPowders, Inc.

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jimmym40a2
PostPosted: Wed Jul 06, 2011 7:43 pm 
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L1A1Rocker
PostPosted: Wed Jul 06, 2011 9:20 pm 
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What does all the verbage in red mean? It sounds like you need an adjustable gas block.

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BEWARE OF ALPHA SHOOTING SPORTS BARRELS!!! All of you with an Alpha barrel would be well served to have your chamber checked.
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300Blk
PostPosted: Wed Jul 06, 2011 9:26 pm 
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It means don't use bullets that are light for subsonic. Part of the reason why you can shoot subsonic and supersonic at the same gas port setting is due to 220/225/230/240 grain bullets.

I tested 210 grain Sierras and they had significantly less cycle energy than the 220s. So I decided that 210 would be marginal for serious use, but probably ok for more casual use.

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L1A1Rocker
PostPosted: Wed Jul 06, 2011 9:27 pm 
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silencertalk wrote:
It means don't use bullets that are light for subsonic. Part of the reason why you can shoot subsonic and supersonic at the same gas port setting is due to 220/225/230/240 grain bullets.

I tested 210 grain Sierras and they had significantly less cycle energy than the 220s. So I decided that 210 would be marginal for serious use, but probably ok for more casual use.


Thanks for the clarification.

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BEWARE OF ALPHA SHOOTING SPORTS BARRELS!!! All of you with an Alpha barrel would be well served to have your chamber checked.
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300Blk
PostPosted: Thu Jul 07, 2011 11:13 am 
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Hodgdon should have data in a few weeks.

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jdj
PostPosted: Sat Jul 23, 2011 12:32 pm 
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Any update on the Hogdon loads? or recommendation for starting loads for the 110gr VMAX using H110?

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-k-
PostPosted: Sat Jul 23, 2011 12:40 pm 
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Hornady reloading manual. They have 300 Whisper data you can use.

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jdj
PostPosted: Sat Jul 23, 2011 5:26 pm 
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Thanks!

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Crosshair
PostPosted: Sat Jul 23, 2011 6:19 pm 
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Obviously this is propaganda to make the 300 Blackout look better than 6.8 SPC. :lol:

/Sorry, couldn't resist. :roll:

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