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Joy finding rifling depth in a Rem. 7600 and an HK 770 308

Discussion in 'Handloading and Reloading' started by Carphunter, Oct 21, 2006.

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  1. Carphunter

    Carphunter Member

    Jan 31, 2005
    Damn. I've never had this much fun finding the depth to rifling in my rifles.

    My 7600 308 was just miserable... I think it's got a deep throat... but it's got a burr either in the throat, or in the lead of the rifling.

    770... well, any gun that slams shut like they do doesn't give you much finesse to find the depth measurement.

    In the end, I think the 7600 is about 2.23 to the rifling, while the 770 is 2.13.

    I did find out too, though, that it's not worth loading the 770 longer than 2.8 oal because if you have to unload it, it doesn't want to eject shells longer than that.

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