30 BR

Discussion in 'Main Message Board' started by blvedere, Jun 26, 2019.

  1. blvedere

    blvedere Gold $$ Contributor

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    I have 5 or 600 155gr match kings and would like to know if any one shot a bullet this heavy in a 30 BR with a 14 twist. I bought these Sierra Palma bullets to shoot F class, but could not get them to shoot the way I wanted/needed to compete, Would like to use them up. Have two 30's that shoot great with 116gr and 125gr now.
     
  2. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Theyll be good for fireforming
     
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  3. joshb

    joshb Gold $$ Contributor

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    They might work or they might be too long. You should try a few. I tried the Sierra 125s in a 17 twist 30br. They were too long and keyholed. Your 14 might work but I’d wonder what velocity you’ll get.
    I have a lot of the 125s if you want to do a trade. I built a Palma chambered 308 for a kid I mentor. We don’t compete . The gun likes the Sierra 155s for shooting out to 500. Send me a pm if you’are interested.
    Josh
     
  4. WayneShaw

    WayneShaw

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    Cast bullets up to 185 or a bit more are shot in a 14 twist.
     
  5. MGYSGT

    MGYSGT Silver $$ Contributor

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    Bet you won't be able to seat them deep enough without crushing the charge.
     
  6. WayneShaw

    WayneShaw

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    Cast bullet barrels usually get a special throating, so that doesn't happen.
     
  7. blvedere

    blvedere Gold $$ Contributor

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    I obviously didn't phrase my question correctly. I was not interested in the twist rate, but in the case capacity. As for cast bullets, I have two 30 cal cast bullet rifles,shooting 200 gr bullets, and yes they are throated deeper for the cast bullets.
     
  8. GerryM

    GerryM

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    I had a friend that shot 150 and 155 bullets in the 39 br. THay shot very well in his rifle. I shot a 30 br with a 15 twist that handled the 130 gr bullets very well.
    They were my own made on 1 inch jackets. The case capacity is enough, but velocity is down quote a bit Check out Barns book on the 308 1 inch and a half.
    Its bascly the same as the 30 BR.
     
  9. GerryM

    GerryM

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    I had a friend that had a 30 BR with a 14 twist that shot the 150 sierra bullet very well
    It shot as well as my 30 Br with a 15 twist did with my custom 130 gr bullets.
    The case capacity is enough. Check out barns book on the 308x1 1/2 Its almost the same as the 30 BR case
    several loads are in there with IMR 4198
     
  10. blvedere

    blvedere Gold $$ Contributor

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    Went to Barnes,but could not find what you were referring too, 308x1 1/2 ?
     
  11. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Its a 308 shortened to 1.5” they did back in the 50’s or so. Then came the 30br and it was forgotten.
     
  12. Tommie

    Tommie Gold $$ Contributor

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    Frank Barnes designed the .308X1.5” cartridge. No connection with Barnes Bullets.
     

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