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Blueprinting action

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Unread 09-25-2012, 08:45 AM
Bronze Member
Join Date: Aug 2011
Posts: 95
Blueprinting action

How important is blueprinting a factory remington action? The reason I am asking is that I'm thinking about following the videos Brownells has on building your own rifle with tools they sell without a lathe. I have heard that blueprinting will only get you that last small fraction of an inch in accuracy. The tools to do this job is around $600 from brownells. If it will get you that extra 1/8" group, it is not that important to me for the cost. Any opinions will be appreciated.
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    Unread 09-25-2012, 10:00 AM
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    Join Date: Aug 2012
    Location: Superior AZ
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    Re: Blueprinting action

    i would like to know this also
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    Unread 09-25-2012, 10:09 AM
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    Re: Blueprinting action

    Blueprinting a Remingotn Action Video by MCR

    Maybe this will help!
    "The only thing necessary for the triumph of evil is for good men to do nothing" - 6.5x284 Build Thread - 6.5x284 Ongoing Shooting Thread - 338 Lapua Build Thread
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    Unread 09-25-2012, 10:48 AM
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    Re: Blueprinting action

    I'm not a gunsmith nor have I ever built my own rifle before so take this for what you wish.

    In my opinion factory actions are just that, factory actions. Meaning they are mass produced and my guess is the tolerance specs. and quality control are much wider than say a custom action.

    How I see it, by not having you action blueprinted you would be taking the risk and hoping your action is closer to the minimum side of factory specs.

    For me, it would be the best $200-$250 you ever spent just to eliminate one, potentially big, variable from the gun building scenario. If for some reason it didn't shoot like you wanted it to atleast you would have peace of mind it wasn't the action.
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    Unread 09-25-2012, 12:43 PM
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    Re: Blueprinting action

    I've built my own guns for right at 20 years now and have trued very few Remington actions. I have lapped the lugs but generally don't spend the time truing the whole action because I've seen more differences in the accuracy of individual barrel than the difference in a trued versus untrued action. If squeaking every last bit of accuracy out of a gun is what you want then by all means do it. I've had some crazy accurate rifles over the years with no more than lapped lugs so that tells me the individual barrel is more important than any other component.
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    Unread 09-25-2012, 12:56 PM
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    Join Date: Jan 2011
    Location: Iowa
    Posts: 304
    Re: Blueprinting action

    When I burn out my barrel, I just planning on having a Quality barrel put on it & that's it but I don't plan on shooting beyond 800 yds & will put on a # 4 contour to keep Weight down.
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    Unread 09-26-2012, 03:10 PM
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    Join Date: Dec 2005
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    Re: Blueprinting action

    'Smiths have been squaring receiver and bolt faces to their barrel tenon axis then lapping bolt lugs to full contact on Rem 700 and Win 70 ones for decades. That's all that is needed if the receiver and tenon thread axes are well aligned. A stronger firing pin spring helps, too.
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