New 300WSM

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by gcamp54, Apr 7, 2012.

  1. gcamp54

    gcamp54 Well-Known Member

    Feb 28, 2009
    This is my new 300WSM. Wasn't sure I was going to keep it since I have a 300WM on the way, and plans to build a 338LM, but it shot so well the first time I took it to the range I have decided to hold on to it.
    Built by John Whidden
    Rem 700 short action trued and modified to feed the WSM
    PT&G bolt with M16 extractor
    Seekins bottom metal with DBM. This one is a 5 rnd. I have a 3 rnd on order
    Hart #5 SS barrel at 26" with 1 in 10 twist
    Holland QD brake
    Oversize recoil lug
    Jewell trigger at 2.5lbs
    McMillan HTG with wheel adjustable cheek, and 4 flush cups
    Pillar bedded
    Leupold 20moa base with Mk4 rings. Base is bedded with epoxy.
    NF 3.5-15x50
    Weight is 12lbs without the bipod
    Loads: Norma brass, 215m primers, H4350 powder, 190vld Bergers (hunting) at .012 jump
    Started at 62.5grs and went up to 64.0grs.
    Best group was at 63.5grs at an average of 2870fps. I think I'll stay there.
    I shot 3 rds of each load at 100yds instead of doing the ladder test.
    So far I'm very happy with this rifle. For now, I will stick with the 190s at 2870.

    Attached Files:

  2. winmag

    winmag Well-Known Member

    Dec 23, 2009
    Sexy lookin rig! Looks likes she's a shooter too. Very nice.

  3. liltank

    liltank Well-Known Member

    Nov 3, 2008
    Nice rifle. If I ever go back to the 300WSM, I'll be using the 185 Hybrid.
  4. Rocky Mountain

    Rocky Mountain Well-Known Member

    Sep 13, 2010
    She loves those 190s alright nice group, I've loaded the 208 Amax in the 300 WSM with good results as well (1-10 twist) R22 2800fps
  5. gcamp54

    gcamp54 Well-Known Member

    Feb 28, 2009
    Thanks for the replies. John Whidden used the 185s to test the rifle and got around .33 moa using N165. I don't have the other data on those loads. Using my ballistic calculator it seems the 190s still have an edge. I'd like to see some testing comparisons to see it it's worth testing the 185s in this rifle.
  6. shortpants

    shortpants Well-Known Member

    Jan 26, 2011
    Very nice!!! Gets me excited to start my 300wsm. build! Thanks for sharing!