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6BR expanded to .308, Shoulder moved forward .100..no turn neck dimension. I cal it 30UAC to keep it unconfused with what could be called a 30 BRX..which has a turned neck.
The interesting aspect should be how consistent sub sonic velocities are by virtue of the "smaller than 308" combustion space .
It should also feed well from AI style and HS Precision magazines.
The difficult part is going to be finding an optimum barrel length that balances subsonic and high velocity performance.
My guess is its going to be somewhere around 18" and a little top end will be lost.
On an AR platform it should be as simple as using two of tp555's adjustable gas blocks and stacking them over two different gas ports.
Last edited by Spook; 04-30-2010 at 10:42 AM.
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