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Old October 21, 2012, 06:07 AM   #36
madcratebuilder
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Join Date: November 2, 2007
Location: Northern Orygun
Posts: 4,868
Unitizing the gas cylinder, either a screw and glue or welding, and shimming when reinstalled well do more for accuracy than about any other mod.

Article on shimming,
http://m14forum.com/reference/89156-...nment-how.html



Quote:
On the barrell, Springfield M1A Loaded model MA9222 has a 22" 6 Groove 1:11 right hand twist national match medium weight premium air gauged barrell (Springfield's description), so KraigWY I guess it should be a good match up with the Federal Premium Match 168 grain ammunition.
Wilson six groove that SAI has been using for years. Those 3/4" groups are good from your rifle.
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