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Old 7th November 2013, 03:00 PM
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RobF RobF is offline
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Join Date: Mar 2010
Member of: Southampton Buccaneers, Parkstone, South Dorset
Location: Poole, Dorset
Posts: 10,170

Normally to cure shift caused by the barrel being pulled around by the stock. It's unlikely you'll hold the same zero taking the action in and out. Possible effects of temp shift on it. Doesn't seem to harm accuracy.
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