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Aluminum Bedding Question

Discussion in 'Rifle Country' started by CEYoung2, Jan 4, 2011.

  1. CEYoung2

    CEYoung2 New Member

    I recently swapped my laminate Ruger M77 Mark II stock (.30-06 w/ 1:10" twist) with a new Hogue replacement. The Hogue stock is the full aluminum bedding block version. Previously the rifle would group 180gr. Nosler AccuBonds around 1-1/2" @ 100 yards and now they're about the size of a softball. 150gr. ammo of most brands seems to shoot better than ever. Even the cheap Remington stuff is under 1". I'm new to learning about ballistics and barrel harmonics so I would appreciate if someone could explain: Why would the rifle stop grouping 180's and tighten up on 150's with a solid bedding foundation? Isn't that more of a function of the barrel twist?

  2. JDGray

    JDGray Well-Known Member

    Be sure the barrel is free floated, and also make sure the recoil lug isn't bottoming out in the new stock, binding things up as you torque the action screws.

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