.338 tejas - 5 shot group - .4"

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by shepardsonp, Jan 28, 2011.

  1. shepardsonp

    shepardsonp Well-Known Member

    Messages:
    71
    Joined:
    Jul 25, 2010
    Just found a great load for my .338 Tejas.

    95g H1000
    CCI 250 Primer
    Berger 300 VLD
    .4" FIVE SHOT GROUP at 100 yards.
    2835 FPS

    .338 Tejas is a wildcat built on the .300 RUM case necked up to .338 with a 52 degree shoulder vs. a 29 degree on the RUM case.

    Shot a cow elk this past weekend on a depredation hunt at 400 yards (layup shot) and she didn't take that very well. :)
     
  2. Rosco1

    Rosco1 Active Member

    Messages:
    32
    Joined:
    Feb 14, 2010
    Built by Wasatch?
     

  3. meatyrem

    meatyrem Well-Known Member

    Messages:
    604
    Joined:
    Sep 3, 2010
    You wouldn't happen to have a pic of the round would you. Kinda curious to see what that round looks like with a 52 deg shoulder.
     
  4. ZSteinle

    ZSteinle Well-Known Member

    Messages:
    920
    Joined:
    Jan 30, 2008
    +1 to that
     
  5. shepardsonp

    shepardsonp Well-Known Member

    Messages:
    71
    Joined:
    Jul 25, 2010
    Actually...

    The rifle started out at Wasatch Precision Arms but Brad Stair finished it for me on the side since he and the 2 owners of Wasatch Precision Arms had a major falling out. Brad was the only guy at WPA that I would let touch my rifle as the other 2 owners wouldn't give me the time of day when I would stop in the shop. Neither one of them are gunsmiths or even machinists by trade as far as I know - might want to check. Now that Brad is no longer there, I have no idea if WPA is even open for business. I do know, they won't get mine!

    Brad is now at a new shop in Ogden called Cross Canyon Arms (801) 731-0172. I saw Brad at the SHOT show last week in Las Vegas. He has 125 barrels in stock and close to 50 McMillan stocks just waiting for a new home. Brad has a team of 35 machinists behind him and the plan is to start making high-quality long-range guns (and soon actions) - like he has been doing for over 30 years.

    Cross Canyon Arm's web site will be up soon!

    gun)
     
  6. shepardsonp

    shepardsonp Well-Known Member

    Messages:
    71
    Joined:
    Jul 25, 2010
  7. Rosco1

    Rosco1 Active Member

    Messages:
    32
    Joined:
    Feb 14, 2010
    I didn't know Brad had split from WPA...good to know.
     
  8. BH Hunter

    BH Hunter Well-Known Member

    Messages:
    210
    Joined:
    Jan 4, 2009
    I think I may have seen this gun..In Idaho maybe?
     
  9. Hicks

    Hicks Well-Known Member

    Messages:
    281
    Joined:
    Sep 19, 2007
    Curious, what advantage does the steep shoulder offer? Just more powder? It looks like head spacing would be rock solid.

    Hicks
     
  10. shepardsonp

    shepardsonp Well-Known Member

    Messages:
    71
    Joined:
    Jul 25, 2010
    You absolutely saw this in Idaho!! I am heading back there this August to do it all again as it was so much fun!!! this rifle is getting fitted to a new McMillan A-5 stock right now. I had it teflon coated in a dark grey which looks really cool.

    I will also have a second .338 Tejas with a full 31" bull barrel, A-5 Stock, NightForce 5.5x22x56mm as a backup!!!

    Can you make the trip????
     
  11. shepardsonp

    shepardsonp Well-Known Member

    Messages:
    71
    Joined:
    Jul 25, 2010
    The 50 degree shoulder (not 52 degree as i mentioned) does give you more powder capacity for sure. I did a case volume test with water and it held about 6 grains of water more than the standard .300 RUM case (not the .338 RUM as it is a smaller case).

    Regarding headspace, I am not a gunsmith so I can't really comment on that.
     
  12. 338 bruce

    338 bruce Well-Known Member

    Messages:
    230
    Joined:
    Aug 1, 2008
    My guess would be that the steep shoulder angles the hotest part of the flame into the brass instead of the throat resulting in longer barrel life.
     
  13. groper

    groper Well-Known Member

    Messages:
    327
    Joined:
    Sep 2, 2008
    gees you must have a really slow barrel to only get 2835fps from 95gr H1000 in an improved case...?

    I was getting 2950+fps from 93grains H1000 in a std 338-300RUM chamber, 30" tube... the accuracy load was down around 89grains for 2850fps...

    How long is your barrel?
     
  14. shepardsonp

    shepardsonp Well-Known Member

    Messages:
    71
    Joined:
    Jul 25, 2010
    yes, I had the barrel speed selector set to the lowest setting possible for accuracy purposes. I actually lapped the barrel in reverse (muzzle to chamber) to ensure the bullet got the most friction to apply as much spin as possible. It decreases your velocity a bit but increases accuracy significantly. Testing was done on a 29.5" barrel and the break adds a bit more length but doesn't have an effect on velocity.

    Actually just looked at my log book and I was getting 2835 fps on 94g of H1000 using the 300g Sierra. Don't have the chronograph data on the 95g of H1000 available. I was using a PVR-22 chronograph for my testing. What chrony model did you use?

    I would agree that my equipment is not as good or as fast as yours. I would also venture to bet that your diesel truck gets better fuel economy than mine and your dad can whip my dad. :)

    The net of the story is that I posted this thread because I enjoy shooting and wanted to share my data. If I wanted to get into a "my stuff is better than your stuff" discussion, I wouldn't have wasted my time posting it.