300 PRC Build

Discussion in 'Big Stuff--7mm, 30 Cal, .338+' started by WeatherbyFan, Dec 29, 2018.

  1. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

    Joined:
    Nov 6, 2018
    Messages:
    33
    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


    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
    Last edited: Jan 12, 2019
    Zero333 and Bc'z like this.
  2. troupe

    troupe

    Joined:
    Jan 7, 2019
    Messages:
    24
    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 ?
     
    Eternal Student and WeatherbyFan like this.
  3. alf

    alf Silver $$ Contributor

    Joined:
    Apr 7, 2007
    Messages:
    2,431
    Welcome aboard......more info, less attitude than the fire......
     
    WeatherbyFan and Danny1788 like this.
  4. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

    Joined:
    Nov 6, 2018
    Messages:
    33
    I bought, ammo,dies and brass off Gunbroker, soon as its built and Im off to the range with it !
     
    Eternal Student and troupe like this.
  5. troupe

    troupe

    Joined:
    Jan 7, 2019
    Messages:
    24
    Thanks for the reply back.
     
    WeatherbyFan likes this.
  6. FrankG

    FrankG

    Joined:
    Jul 27, 2006
    Messages:
    501
    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

    Joined:
    Nov 6, 2018
    Messages:
    33
    I see there's more 300 PRC brass on GB now
     
  8. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

    Joined:
    Nov 6, 2018
    Messages:
    33

    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
     
    FrankG likes this.
  9. murray brook

    murray brook Silver $$ Contributor

    Joined:
    Aug 8, 2015
    Messages:
    261
    Don
    Who made your reamer
    Boyd
     
  10. FrankG

    FrankG

    Joined:
    Jul 27, 2006
    Messages:
    501
    Welcome Don! Let us know how it works for ya!

    Later, Frank
     
    DTLaRoche Bud and WeatherbyFan like this.
  11. FrankG

    FrankG

    Joined:
    Jul 27, 2006
    Messages:
    501
    Looking at his reamer and go gauge. Looks like Manson.
     
    murray brook likes this.
  12. Eternal Student

    Eternal Student Silver $$ Contributor

    Joined:
    Mar 15, 2016
    Messages:
    256

    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.
     
    FrankG, smoooth and WeatherbyFan like this.
  13. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

    Joined:
    Nov 6, 2018
    Messages:
    33
    Hey Boyd
    How ya doing ? Yes it’s just a SAAMI spec Manson Reamer, ordered through Gary Eakin @ Bighorn Sales
     
    murray brook likes this.
  14. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

    Joined:
    Nov 6, 2018
    Messages:
    33
    Ok the #4 barrel for my 300 PRC Stiller action build hasn't shown up yet.................so I had a Kimber Montana 8400 300 win mag donor laying around and a 26" Hells canyon Carbon Fibre 1-9.5 twist barrel so my gunsmith suggested we put a 300 PRC together with that action,

    He lengthened the mag box to 3.7” and opened the bottom of the action up a tiny bit, hand made one of his special brakes, trued and squared the action, lightened the trigger, some pewter gunkote, added palm swell and high comb on the Montana stock and a cool paint job as well as a carbon Fibre Bolt handle, Talleys and a Zeiss V4 4-16x44 on top and Im off to the range in the morning !

    [​IMG]
    [​IMG]
    [​IMG]

    [​IMG]

    [​IMG]
     
    Last edited: Mar 5, 2019
    Zero333, thekriebles and Bc'z like this.
  15. murray brook

    murray brook Silver $$ Contributor

    Joined:
    Aug 8, 2015
    Messages:
    261
    Fine looking rifle. Hope it shoots as good as she looks. Let us know how she does.
     
    WeatherbyFan likes this.
  16. WeatherbyFan

    WeatherbyFan Gold $$ Contributor

    Joined:
    Nov 6, 2018
    Messages:
    33
    Thanks Boyd, yeh Im a little skeptical of a CF barrels but its growing on me, Im curious as how it will shoot !
     
    murray brook likes this.
  17. kwil13

    kwil13 STAY FROSTY

    Joined:
    Sep 23, 2012
    Messages:
    6
    I would like to know how's the recoil, I am thinking about building a 300 prc vs. a 338 lm for big game hunting.
     
  18. wboggs

    wboggs Gold $$ Contributor

    Joined:
    Nov 29, 2007
    Messages:
    1,428
    What size "big game" ? A fast 338 will be better when you hunt large animals.
     
  19. Zero333

    Zero333 Silver $$ Contributor

    Joined:
    Dec 24, 2015
    Messages:
    2,176
    A large 338 kicks hard when shot from a 8 lb rifle.
     
  20. wboggs

    wboggs Gold $$ Contributor

    Joined:
    Nov 29, 2007
    Messages:
    1,428
    It does, no doubt. But it is a sure fire killer. A 30 cal is not in the same league. You can put on a break. You never notice the recoil when hunting. Light handloads are great for practice.
     

Share This Page