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Thread: 30 br chmaber numbers...wierd...

  1. #1
    Join Date
    Feb 2003
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    aurora, co
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    30 br chmaber numbers...wierd...

    in the continuing saga of the used kreirer 30 br bbl i bought, please talk to me about 30 br reamers.

    the end of the neck is at 1.532 or so...why would anyone cut the neck so short ??..they enjoy trimming brass ??

    the throat is very long with a 115 berger seated to 1.280 i am jumping 0.100. why so long ?? it is a 17 twist so maybe 125 at the top end ??yes no ??

    the chamber makes no sense to me....but it shoots ok...i shot a 200-9x with it( 20 shot format)

    should i give up and start over ??
    it is a rem 700 action/mbr stock/ nf 12-42x and makes heavy var.

  2. #2
    Join Date
    Feb 2003
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    Poetry, Tex.
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    6,417
    I think you need to give up.

  3. #3
    Join Date
    Jan 2015
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    Wisconsin
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    A Robinette 30BR chamber I believe has a length of 1.520". Trim length is generally 1.500". If your brass is 1.532" in a Robinette chamber, you've got a problem.

    Second it's possible that it was chambered for bullets made on 1" jackets, instead of .925". Try something in the 117-125 grain range but make sure they are made on 1" jackets.

  4. #4
    Join Date
    Oct 2005
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    Arizona
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    274
    Grizzly is selling a reamer marked Robinett 30 BR that has a chamber length of 1.560".

  5. #5
    Join Date
    Oct 2003
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    Malvern, Arkansas
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    Ive seen more than my share of 30br reamers. All were different and all said 30br robinette.

  6. #6
    Join Date
    Feb 2007
    Location
    Mattoon
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    Plus 1 with what Dusty said. I have 3 Robinett reamers in my shop, and all three are different.. Isnt that MBR stock illegal for registered HV score?? Lee

  7. #7
    Join Date
    Feb 2003
    Location
    Des Moines, IA
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    1,448

    The MBR

    Quote Originally Posted by skeetlee View Post
    Plus 1 with what Dusty said. I have 3 Robinett reamers in my shop, and all three are different.. Isnt that MBR stock illegal for registered HV score?? Lee
    Is very legal as long as it meets HV measurements.

  8. #8
    Join Date
    Jun 2008
    Posts
    497
    Quote Originally Posted by David Halblom View Post
    Is very legal as long as it meets HV measurements.
    Dave, I think Lee is right they are a long range stock with only 3* drop in butt about 1/2 of h.v. rules....George

  9. #9
    Join Date
    Jan 2015
    Location
    Wisconsin
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    65

    30BR Robinette specs

    Maybe "the man" himself will pop his head in here and enlighten us.

  10. #10
    Join Date
    Oct 2005
    Location
    Arizona
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    274
    Quote Originally Posted by James Lederer View Post
    Maybe "the man" himself will pop his head in here and enlighten us.
    http://benchrest.com/showthread.php?...-br-trim-lengh

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