Newbie to this forum - say it quietly!
Hi all,
Just joined the forum, as I am interested in building a suppressed .300 Whisper on an AR15. Suppressers / moderators are legal (encouraged, even!!) in the UK. Centre-fire semi-autos are totally illegal, and have been for twenty years. Therefore, I'm considering a manually operated carbine. Any suggestions for optimum barrel length and twist with 220 - 250g bullets at sub-sonic velocity would be greatly appreciated!
AndyUK
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