300 PRC Build

Discussion in 'Big Stuff -- 6.5mm, 7mm, 30 Cal' started by WeatherbyFan, Dec 29, 2018.

  1. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

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    Hi All,

    1st post here and thanks for the add, looks like an awesome forum with great information.

    I'm just collecting the parts for my 300 PRC build and and can't wait to have it all together,I just received my Manson Reamer, Hornady ammo and Brass, build as follows,

    Stiller Predator Action
    Barrel TBD- a 26"#3 Fluted 1-9.5 twist some sort
    Timney Calvin Elite Trigger 2.5lbs
    Wyatts Mag Box
    Stainless bottom metal
    Wildcat Composite stock with palm swell fitted tony right hand, high comb and cheekpiece
    Custom hand made brake.
    topped with Talleys a Zeiss V4 4-16x44 Z-Plex
    will be built by Gary Flach


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    Last edited: Jan 12, 2019
  2. troupe

    troupe

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    Looking forward to hear your results. I am also new to the site and I am thinking of building one also. Like to hear your velocities. Where did you find the ammo ?
     
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  3. alf

    alf Silver $$ Contributor

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    Welcome aboard......more info, less attitude than the fire......
     
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  4. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

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    I bought, ammo,dies and brass off Gunbroker, soon as its built and Im off to the range with it !
     
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  5. troupe

    troupe

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    Thanks for the reply back.
     
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  6. FrankG

    FrankG

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    If your just going to be shooting hunting bullets in the 212gr. Or less a 1-10 twist barrel will work just fine.

    Hornady settled on a 1-8.5 twist barrel for SAAMI spec. We made them quite a few barrels for testing in everything from 8 twist to 10 twist.

    If your going to shoot heavier bullets than I would say go faster twist.

    If I recall correctly the 225’s should shoot fine thru a 10 twist but you might be giving up some bc on the bullets.

    Earlier last year I built a F open gun in .300PRC. I’m only running 225’s and 230’s thru it. According to my twist cacl’s The 230’s need a 1-9.24 twist min at 2800fps. At 3000fps they need something like a 1-9.52 if memory serves me correctly. I put a 1-9 twist on my gun. I’m running the bullets at an honest 2900fps out of my gun. Gun shoots excellent.

    Later, Frank
    Bartlein Barrels
     
  7. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

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    I see there's more 300 PRC brass on GB now
     
  8. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

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    Hey Frank

    thank you for the info, Ill be shooting at the range mostly and a bit of Elk hunting with it, Im looking at testing out the two factory offering to start but did pick up some 220gr Lapua ScenarL and Berger 210gr VLD Hunting bullets to test out,

    Ive ordered a 9.5 twist barrel so should be a good compromise.

    Thanks again
    Don
    WF
     
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  9. murray brook

    murray brook Silver $$ Contributor

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    Don
    Who made your reamer
    Boyd
     
  10. FrankG

    FrankG

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    Welcome Don! Let us know how it works for ya!

    Later, Frank
     
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  11. FrankG

    FrankG

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    Looking at his reamer and go gauge. Looks like Manson.
     
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  12. Eternal Student

    Eternal Student

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    I run one of your 1-8.5 twist 27 in. on my 300WM and it shoots very well. I will keep the same size/type of barrel on the 300PRC build. I see that Hornady was getting 2811 fps. out of a 24 in. barrel. Maybe I can get over 2900 with the longer barrel....? IMO I believe that a 10 twist is obsolete for ELR shooting. I think you need at least a 9 twist depending on the projectiles you want to shoot.. JMO
    I don't think that I will notice much between the two cartridges.... I am excited to see.
     
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  13. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

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    Hey Boyd
    How ya doing ? Yes it’s just a SAAMI spec Manson Reamer, ordered through Gary Eakin @ Bighorn Sales
     
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