7WSM + 300WSM Need Pet Loads

Discussion in 'Big Stuff -- 6.5mm, 7mm, 30 Cal' started by Forum Boss, Jan 16, 2008.

  1. jcann

    jcann

    Joined:
    Jan 30, 2012
    Messages:
    10
    7WSM
    26" 5R Bartlein Barrel
    Winchester CRF action (tuned & bedded by GA Precision)
    65.80gr H1000
    CCI BR2 Primers
    Winchester brass
    180gr Berger hunting VLD
    2.2475" Base to ogive
    2,880fps @ 57 deg, alt. 1,295ft, barometric pressure 29.68
    100yd C/C 5 round group 0.116"
     
  2. Ivo

    Ivo

    Joined:
    Mar 16, 2010
    Messages:
    14
    7WSM

    PGWDTI Coyote Action
    Krieger 24" 1:8
    Win Brass weight sorted
    Fed215M
    180gr Berger VLD OR SMK
    66.9gr RL25
    1/4-1/3 MOA(easily 1"@300m)
    3060fps
     
    kev77 likes this.
  3. Savage99

    Savage99

    Joined:
    May 12, 2006
    Messages:
    149
    Long before i would change a barrel because of a wild first shot I would modify the bedding and after that recut the crown. Also change the scope to one that's know to perform.

    Take the stock off now and look at the bedding. Get some black electrical tape and make a shim of some of it folded on itself under the barrel and put it back together.

    Bring your screwdrivers and tools along with that tape to the range.

    If it does not shoot much better loosen the rear guard screws and shoot it again.

    Use a soft folded towel under the forend. Be consistent in how you shoot and hold the rifle.
     
  4. jsthntn247

    jsthntn247 Silver $$ Contributor

    Joined:
    Mar 9, 2010
    Messages:
    1,474
    7 wsm
    25" Bartlein Barrel
    65.2gr Re 22
    Win Brass
    168gr Long Range Accubond touch lands
    Shot my smallest group ever. In the 0's
     
  5. grizzlydueck

    grizzlydueck

    Joined:
    Mar 11, 2014
    Messages:
    1
    7WSM
    160 accubond
    63 grains H4831 sc at 3300ft elevation
    2.900= just off lands
    Federal Gold Medal Match 215M
    Match prepped Winchester brass- turned necks etc -weighed & measured accubonds-
    Shillen select match- contour 3-1in9 -24inch -laminate stock
    Win mod 70 tweeked-trigger job-aluminum picitinny rail-burris sig zee-shepherd scope
    Have not had time to crono yet
    But 1 inch groups at 300 yrds =truly amazing! I'm done my load development!!!
    Look out wolves! 2 down so far! but only at 300-330 yards.
    One at 618yds the year before with the old barrel.
     

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  6. racesnake

    racesnake

    Joined:
    Dec 13, 2010
    Messages:
    377
    7mm-270WSM
    30" Bartlein, 9 twist
    R-P brass, neck-turned
    Berger 180gr. Hybrid
    Wolf large rifle primers
    68.5gr. Accurate Arms MagPro powder
    This load is averaging 2950fps and grouping 0.3 MOA!
     
  7. whatwind?

    whatwind?

    Joined:
    Mar 19, 2015
    Messages:
    91
    7mm-300wsm
    30" Bartlein, 1:8.75 twist
    BAT 3L RPLP
    300wsm Norma brass, turned to .130
    .310 bushing
    Berger 180 gr. Hybrid pointed
    2.424" BTO
    Fed 215m mag match
    61.92 gr. 4831sc
    3050 fps in hot and humid LA
     
    Last edited: Jan 5, 2016
  8. SWRichmond

    SWRichmond

    Joined:
    Dec 22, 2014
    Messages:
    133
    300WSM

    210 Berger VLD, jumping 0.005"
    60.0 gr H4350 - on the hot side
    Federal 210M
    Norma or Winchester brass

    2775 fps, 26" bbl

    I was pleased with how easy it was to tune this load. Almost 1900 rounds through the barrel and it still shoots great.
     
    swampthang likes this.
  9. Steve Blair

    Steve Blair

    Joined:
    Sep 6, 2009
    Messages:
    4,577
    .300 WSM
    34" Brux 8.75" twist, .280" freebore
    BAT 3LL147OCTPIC
    Norma .270 WSM brass, expanded and turned to .012" wall
    Berger 230 Hybrid, ~3.270" OAL
    Russian LR primer
    66.0 H4841 SC, ~2865 fps
    68.5 IMR 7828 SSC, ~2950 fps
     
    Bob Sebold and BOB LEE SWAGGER like this.
  10. terbal

    terbal

    Joined:
    Sep 25, 2015
    Messages:
    2
    7WSM Target Loads

    63gr H4831SC
    CCI Magnum primer
    turned Winchester brass, 311 neck
    180 JLK
    .0020 of the lands
    velocity avg 2875
    shoots consistently in the mid to high 2s (.250-.286 MOA)

    61gr H4831SC
    CCI BR2 primer
    turned Winchester brass, 311 neck
    180 Berger VLD
    .001 of the lands
    velocity avg 2825
    shoots consistently in the mid to high 1s (.150-.180 MOA)

    Rifle
    Remington 700 trued magnum action in a McMillan Tooley MBR stock, pillared and bedded
    30" Broughton 5C HV contour barrel
    3oz Jewel trigger
     
  11. BlackburnBuccaneer

    BlackburnBuccaneer

    Joined:
    May 31, 2015
    Messages:
    11
    Tikka T3 SV 24" Varmint contour .300WSM in MDT Tac-21

    67.5gr Reload Swiss RS62 (Below Max)
    WW Brass
    Fed 215m Primer
    2156 155gr SMK
    2.940" (Accurate mag length)
    Velocity 3045
    1/2" average @ 100

    67.5 VV N550
    WW Brass
    Fed 215m Primer
    155 Sierra TMK
    2.940"
    Velocity 3128
    1/2 - 3/4" @ 100
    3/4 moa @ 600

    67 Reload Swiss RS62
    WW Brass
    Fed 215m Primer
    178 A-Max
    2.965"
    Velocity 2985
    0.6" @ 100

    About to try 175 VLD with N550
     
  12. gbp

    gbp Gold $$ Contributor

    Joined:
    Aug 31, 2006
    Messages:
    91
    300WSM
    68.0grn RL-17
    155grn Scenar
    2.8435 Hitting the lands
    GA Preciision

    7WSM
    66.0grn RL-22
    162grn Amax
    At the Lands
    Kimber Montana
     
  13. swampthang

    swampthang

    Joined:
    Sep 27, 2014
    Messages:
    136
     
  14. watrob

    watrob Silver $$ Contributor

    Joined:
    Jun 24, 2016
    Messages:
    23
    7mm WSM, 30" Reverse Tapper 1:9" Twist Shilen Barrel, Grizzly ll Action, Kelbly M1 Stock, 80x March Scope.
    180 Berger, Jammed
    66.0gr ADI2217 (H1000)
    Federal 210M
    100yds, 4 shot Group
    image1.jpg
     
    Last edited: Dec 15, 2016
    PGS and 300_whisper like this.
  15. Desert Fox

    Desert Fox

    Joined:
    Feb 24, 2013
    Messages:
    95
    SSG 7WSM, Lawton 7500, 30" Broughton 5C 8 Twist

    Brass: Winchester WSM
    Primer: Federal 210 Match
    Powder: Reloader 25 65.5 Grain
    COAL: 3.190" at the ogive
    Velocity: 3,025 FPS.
     
  16. watrob

    watrob Silver $$ Contributor

    Joined:
    Jun 24, 2016
    Messages:
    23
    Took the 7 wsm rifle to the gunsmith Sunday morning to have the neck extended by .020" so I can run cases at 2.095" (coal is now 2.105") instead of the trimmed case length of 2.073" as the coal could only be 2.085", we don't know why the chamber ended up at this original length, most likely the 7 WSM match grade reamer had a shorter than usual length neck. We also re-crowned and extended the throat by .004".

    The rifle had fired 650 rounds and the throat had not warn, the gunsmith believes I will get another 800 rounds or more as the barrel was in pretty good condition. I am running at around the 2,970fps with 180 gr VLD Bergers with 66 grs H1000, if I can get a total of 1400 rounds plus, I think that's pretty good.

    So I now have the benefit of a true 7 WSM long case (base to shoulder, which is longer than a 300 WSM) and the long neck of a 300 WSM, this should give a bit better barrel life along the lines of a 300 WSM barrel, I hope? I have attached a photo of the new & old brass showing the longer neck.
    image1%20(3).jpg
     
  17. Clownbuster

    Clownbuster Brigadier Brass Boss Silver $$ Contributor

    Joined:
    Feb 14, 2017
    Messages:
    91
    SSG 7mm-300WSM, Pierce Ti LA, 28" Proof Carbon barrel, 1:9 twist
    180gr Berger
    65.4 gr H1000
    3.100" COAL
    Federal 210
    Necked-up 270WSM Norma brass, neck-turned to 0.015", trim to 2.080".
    2925-2975 fps
    Produces consistent 0.15" groups. Anneal after every firing.

    SSG 7mm-300WSM, Defiance LA, 5R Benchmark barrel, 26", 1:9 twist
    180gr Berger
    67.0 gr H1000
    3.100" COAL
    Federal 210
    Necked-up 270WSM Norma brass, neck-turned to 0.015", trim to 2.080".
    2925-2975 fps
    Produces consistent .15" groups. Anneal after every firing.
     
    Last edited: Feb 15, 2017
  18. graydigger

    graydigger

    Joined:
    Feb 17, 2017
    Messages:
    1
    300 WSM accuracy loads:

    Berger 230 VLD OTM
    IMR 7828ssc: 62.2 gr
    2.965" (touching lands)
    Norma 300 WSM, neck turned to 0.0130" (80.4gr H2O cap)
    WLRM primer
    2625 fps at 30F, 2651 fps at 65F, av. sd 4.5
    (Warm, but on 13th loading with no dropouts yet) Annealed after each firing
    Average precision (not best group) 10 x 3 shot groups at 300 yds: 0.26 moa wide x 0.37 moa high (prone bipod).

    Berger 190 VLD Hunting
    IMR 7828ssc: 67.3 gr
    2.911" COAL (touching lands)
    Norma 300 WSM, neck turned to 0.0130" (80.4gr H2O cap)
    WLRM primer (Fed210M comparable accuracy and MV, but higher sd)
    2926 fps at 51F, sd 9
    On 14th loading no primer dropouts yet. Annealed after each firing
    Av. Precision (not best group) 0.47 moa w x 0.34h 300 yds (prone bipod)

    Rifle: blueprinted early 1970's Rem 700 SA, Benchmark MTU 1:10 22", McMillan A1, Nightforce NXS 5.5-22, Custom MB, Harris, tuned 40X trigger

    Notes: 190 gr load has taken bull elk at 570 yds.
    230 gr. Has considerably more schwack, but no opportunity to test terminal ballistics yet.

    Had very accurate Berger 200 Target Hybrid load w/H4350 (61.0 gr, Norma brass, WLRM, Nosler brass but MV 2807 w/sd 12-14 so didn't see the use in this one.

    Hope this is helpful to the project.
     
  19. delivery_boy

    delivery_boy

    Joined:
    Aug 4, 2014
    Messages:
    47
    Kimber Montana 7WSM

    168Gr Berger VLD hunting, Norma 300WSM brass, Fed LRP, 69.5Gr AR2217 (H1000) 3034fps .9moa @200m
     
  20. Orcon

    Orcon

    Joined:
    Sep 21, 2015
    Messages:
    3
    300 WSM
    Savage 12 BVSS 26" bbl

    Fully prepped Winchester brass, weight sorted to 2% delta
    200gr Hornady ELD-X
    61gr Accurate Arms 4350
    WLRM primer
    2.860" COAL
    2825 FPS

    This load will shoot 1" ten round groups at 330 yards, 2.5" (1.75" vertical) ten round groups at 550 yards.

    Looking forward to shooting this past 1k.
     

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