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    Mossberg 4x4 Bolt Action Troubleshooting

    Hi all! I have a new 4x4 in .338 win mag. I'm trying to remove the muzzle brake to install the supplied thread protector instead, but the thing will not budge. I've tried turning it counterclockwise, clockwise, and every which way in between. Penetrating oil, heat, nothing seems to be working...
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