Being that I'm planning on starting an SBR build soon, I'm having trouble settling on a barrel.
I don't feel particularly confident in picking a length and twist rate of barrel yet. As the velocity and twist rate of the barrel impacts the effectiveness of the round fired, I feel like there are a number of variables at work in choosing the most effective or versatile barrel.
I've heard wonderful things about 70gr TSX rounds, but I'm not sure if they'll stabilize from an 11.5" 1:8 twist barrel. If they do, will they perform exceptionally well at that velocity still? What about a 62gr soft point?
I'm looking to build an SBR that I plan to shoot as my main rifle, that will also serve as my HD gun. It would be nice if that combo that could well out to about 200 yards (ammo to match that barrel length).
I had been leaning towards 11.5", but 12.5" seems to have some fans as well. At that point, I begin to question the hassle of going NFA for 2" less than a 14.5" gun with a pinned device...
I guess my question is just: what length and twist rate seems to be the most versatile of the SBR's given ammo on the market today?
Thanks in advance!


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