carverelli Posted September 20, 2019 Report Share Posted September 20, 2019 aero precision red white blue flag builder kit. I need some guidance on a carbon fiber barrel, a titanium or similar light bcg and stock. I emailed proof research today. They have a barrel with 1: 7.5" twist. they said it'll stabilize ALL 6MM bullets Quote Link to comment Share on other sites More sharing options...
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