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Thread: Primer pocket reamer/uniformer

  1. #1

    Primer pocket reamer/uniformer

    I am still no 100% on this.

    Do you guys use a primer pocket reamer/uniformer? if so how often?

    steve

  2. #2
    Musty,
    I use a uniformer once on new brass, after that i just clean the pocket in the usuall way. All new cases are full length resized, checked for length, flash hole de burred, primer pocket uniformed, case neck's de burred then chamfered (that way round).
    It might not make a huge difference but the tools aren't expensive and it certainly wont hurt.
    Remember that a pocket uniformer only cuts the bottom of the primer pocket so it should only cut once anyway, after that you would just be cleaning the pocket not removing brass.

    Ezzy

  3. #3
    Steve
    I use one of these every time I prepare the brass.
    SINCLAIR INTERNATIONAL : Sinclair Primer Pocket Uniformers, Large Rifle (UN-8002 ) -

    I try and follow exactly the same process every time I prep the brass.
    It doesn't really matter what you do, but more that you do the same steps in the same order each time. You can take prepping brass to extremes, but most folk can get very acceptable results without to much effort.
    The following article takes things to extremes:
    One of the Many Great Articles from the Archives of Precision Shooting Magazine...
    Have fun, write down what you do and do it the same way the next time you do it.
    Regards
    JCS

  4. #4
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    [QUOTE=jcampbellsmith;122079]Steve
    I use one of these every time I prepare the brass.
    [url="http://www.sinclairintl.com/.aspx/sid=63188/pid=34720/sku/Sinclair_Primer_Pocket_Uniformers__Large_Rifle"]SINCLAIR INTERNATIONAL : Sinclair Primer Pocket Uniformers, Large Rifle (UN-8002 ) -

    I'm not quite clear here, are you saying you uniform the pocket every reload with the cutter, actually cutting?

  5. #5

  6. #6
    Ogive - see [comments]. Rgds JCS

    Quote Originally Posted by Ogive View Post
    .......I'm not quite clear here, are you saying you uniform the pocket every reload with the cutter, [Yes] actually cutting? [Very rarely cuts any brass.]

  7. #7
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    The accepted wisdom is, don't do that.

    Uniform primer pockets and flash holes once only. Or buy decent brass, like Lapua for instance.

    I pass along these words from a military and civil commercial reloader, who also happens to be a bit good at 1000yd shootin' too.

  8. #8
    Ogive

    Thanks for the feedback. I keep tweaking my list of things to do with the brass as I improve my understanding. I am getting reasonable chrono results at present as per attached. It is all Remington brass.

    Any comments on these results?

    Rgds JCS

  9. #9
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    Lookin good jc

    Do the groups match the tight velocity spread?

    Nothing wrong with R-P brass, I use it in my .30-06 ...sometimes there's a bit of burring on the flash holes though, but I'm guessing you already know that and have dealt with it.

    However, I prefer lapua for the 6.5 - 284

  10. #10
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    ps. I'm a Viht fan too

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