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  1. R

    Gunsmithing Back bore for threaded muzzle question ???

    If a 22 caliber rifle muzzle is going to be threaded to 1/2-28, is it necessary or preferable to "back bore" the muzzle to keep accuracy. The rifle is a 22 rimfire with an barrel o.d of .850 at the muzzle. Will threading the barrel open up the end of the muzzle and cause accuracy to suffer...
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    Range Report Point of impact subsonic vs supersonic ?

    Does anyone have experience with poi shift in subsonic loads in a round that it usually supersonic? I am especially interested in chamberings in (rifles) like 300 Blackout, 300/221, 450 Bushmaster, 45 colt 44 mag and others where the higher muzzle velocity and subsonic velocity are nearer than...
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    .50 bmg upper ?

    Does anyone have any experieince with the .50 bmg uppers that fit an Ar-15 lower? Just curious how they performed.