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1/25/2018 7:38:29 AM
Posted: 9/1/2003 3:26:22 PM EST
Got a chance to testfire my recent M-4 build using a 14.5 1-7" twist Bushmaster barrel/Phantom flashider. Seems to be pretty accuarte, was only using an AImpoint but got nice groups seems to shoot at least MOA.

I did notice that it had a very big change in point of impact between shooting SS109 and 50HP Federal loads, the 50gr load shot at least 6" higher at 100yeards. I haven't seen a big shift of impact out of my other recent builds with Colt barrels (most everyting within 3" circle) however my other builds have been free floated.
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