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    Gunsmithing Barrell recessed for bolt with a Surgeon SA .308?

    Hi Guys, Given that the Surgeon tread is .950" long compared to the Remy .700" tread, does a barrel which is to be fitted to a Surgeon SA .308 need to be recessed for the bolt/lugs the same as the Remy 700 or can the bolt sit flush? Regards, Irishrifle.