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Thread: 300 Hamm'r Cycling Problems

  1. #1
    Join Date
    Aug 2009
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    300 Hamm'r Cycling Problems

    Bought a new Wilson .300 Hamm'r Upper and had problems with it cycling. One shot and it would "short stroke". Changed from Heavy to Standard weight Buffer same problem. Shooting a 125 gr bullet with 26.0gr of CFE Blk. Non adjustable gas block. Looks like I need to increase my powder charge or change powder? 16 inch barrel here.

  2. #2
    Join Date
    Mar 2021
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    Well you do have some headroom. I would ladder 26.5, 27, 27.5 and work my way up. If you get to the latter and the bolt doesn't lock back I'd contact B.W. and Co

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