300 prc velocity

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by blackaj, Jun 8, 2019.


Help Support Long Range Hunting by donating:


  1. dirtytough

    dirtytough Well-Known Member

    Messages:
    153
    Joined:
    Oct 18, 2006
    Mine shot the factory 225 ELD'm @2876. 26" 1-9.4 PR barrel.
     
    blackaj likes this.
  2. blackaj

    blackaj Well-Known Member

    Messages:
    875
    Joined:
    Jun 4, 2010
    That's pretty dang good!
    Wasn't the advertised velocity around 2810, from a 24" barrel..
    I can't understand why the hell they'd use such a short barrel for testing
     
  3. elkaholic

    elkaholic Official LRH Sponsor

    Messages:
    7,914
    Joined:
    Dec 4, 2008
    That's not bad and I'm not surprised. My version runs the 225 at 3050' with a 28" barrel.
     
  4. dirtytough

    dirtytough Well-Known Member

    Messages:
    153
    Joined:
    Oct 18, 2006
    Not sure off the top of my head. I would assume it will speed up some after some more shooting. Probably be in the low 2900 range.

    Just to clarify that’s not the factory load correct?

    I checked the velocity on mine when I only had 12 shots on it. I expect it will speed up a little more after getting more shots down the barrel. Probably put it in the low 2900 fps range.

    If your barrel was 26” it would be closer to 3000 FPS with the improved version. If that’s the case it seems like the factory loads are close to max velocity. A guy might get a little more out of it but maybe not much by reloading.

    I bought one box of factory originally and it shot ok. After doing PR’s suggested break in, getting a zero, and velocity, I backed up to 852 yards and shot a 6” group. It shot decent enough I grabbed 9 more boxes. I’ll probably end up loading for it. But for now I’ll just shoot factory until I have 100-200 brass. If it keeps shooting factory ammo decent I might not load for it. We will see.
     
    Totoro, elkaholic and SWS5158 like this.
  5. elkaholic

    elkaholic Official LRH Sponsor

    Messages:
    7,914
    Joined:
    Dec 4, 2008
    No, mine was a hand load. I've run it up to 3100' but too hard on brass!
     
    dirtytough likes this.
  6. SWS5158

    SWS5158 Member

    Messages:
    23
    Joined:
    Apr 6, 2014
    I assume your load is with Hornady brass, will you share what powder and primer is getting you those numbers? How much jump to the lands do you have? Thanks!
     
  7. elkaholic

    elkaholic Official LRH Sponsor

    Messages:
    7,914
    Joined:
    Dec 4, 2008
    Hornady brass.
    F215 primer
    83 N570. 3052'
    .025" jump
    .040" jump also worked
    **** This is in my 30 SM which is the improved 300 PRC***
    You should probably start with 78-79 grains. You might max by 80-81??
     
  8. OrionsStar

    OrionsStar Well-Known Member

    Messages:
    50
    Joined:
    Jul 2, 2012
    Tagging in. Thanks Guys!
    Jim
     
  9. SWS5158

    SWS5158 Member

    Messages:
    23
    Joined:
    Apr 6, 2014
    Elkaholic,

    Thanks for the load data. I thought I had replied to you earlier, but don’t see it. Can you explain 30 SM / Improved 300 PRC?

    SWS5158
     
  10. highdrum

    highdrum Well-Known Member

    Messages:
    786
    Joined:
    Nov 30, 2008
    It has a reduction in taper, 40° shoulder that nets about a 3gr capacity increase, I could be wrong a capacity gain. It's optimized to fireform factory ammo into new spec like the old ackley cases. The case becomes a bit more efficient, less trimming, and will get you maybe 100fps more max vs top loads in standard prc, but the brass will live longer due to more chamber wall grip and less bolt thrust. I'd think a Christensen ridgeline 300prc with the shoulder set back 2 threads and reaming with the Sherman design would be a great all around hunting rifle. A standard 300prc will do it all the same, albeit 100fps slower.
     
    elkaholic likes this.
  11. elkaholic

    elkaholic Official LRH Sponsor

    Messages:
    7,914
    Joined:
    Dec 4, 2008
    Thanks for that. It pretty much sums it up.