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7mm mag load?

Discussion in 'Handloading and Reloading' started by nastynatesfish, May 31, 2010.

  1. nastynatesfish

    nastynatesfish Well-Known Member

    looking to switch bullets since my new 700 doesnt seem to like the 154gr bullets.
    looking at getting the 168 mk or the berger bullets, i use reloader 19 and 22. my rifle is a rem700 sps 26" 1-9.5.
    what do you think also about the 180s
  2. JimKirk

    JimKirk Well-Known Member

  3. oneounceload

    oneounceload member

    MY 700BDL really likes Sierra 160 for accuracy, and the Nosler 160 partition comes in a close second
  4. nastynatesfish

    nastynatesfish Well-Known Member

    its for hunting but will shoot alot of targets during off season

    MY 700BDL really likes Sierra 160 for accuracy, and the Nosler 160 partition comes in a close second

    what 160s do you use? i was thinking about trying some barnes next week but dont know if the smk or the bergers will shoot different
  5. azar

    azar Well-Known Member

    The 150g Barnes TTSX gave me great 3-shot accuracy at 100 yards (0.565").
    The 160g Sierra SBT GameKing gave me very good 5-shot accuracy at 100 yards (1.1").
    The 162g Hornady Interlock BTSP gave me acceptable 5-shot accuracy at 100 yards (1.5"). I'm not done with load development on the 162g and I think I can still tighten it up a bit.
  6. oneounceload

    oneounceload member

    I use the 160 Nosler partitions and in Sierra, the 160SPBT. Actually, with MY 700, it will shoot hunting-accuracy wise, any 140, 150, and 160 at 1" or less for 3 shots at 100. I like to use the 140s now in my model 7 in 7-08 and save the 160s for 7mag. IMR 4831 and 4359, along with 7828 have always worked. I haven't used any of the Reloader series
  7. ForneyRider

    ForneyRider Well-Known Member

    I use a lot of R22 with 120-162gr bullets in 7mm Mag. R22 is great for matching factory velocities.

    Try LR primers, lots of load data uses LR primers for 7mm Mag.

    I get better accuracy with IMR4064 (light bullets) and IMR 4350 (heavy bullets) than R22. I'd try R22, 4350 or 4831 with the 150gr and heavier bullets.

    154gr Hornady should be happy, but try 139gr or 162gr Hornady SST or equivalent Nosler Ballistic Tip.

    I tried shooting 168gr SMK and R25 with accuracy not as nice as other combos. I did a lot of powder charge and primer experimentation with nothing meeting my 120gr Nosler BT, Hornady 139gr SST, or Hornady Interlock 162gr loads with R22.

    180gr is a big bullet, 1:9tw is recommended by Berger.
  8. nastynatesfish

    nastynatesfish Well-Known Member

    my gun has the 1-9.5 so should it stabilize the 180 or im thinking the 168 would be better but the berger bullets have long ogives to them so im not sure if the extra length would change how the twist handles the bullet weight or not. im gonna pick up some 168s this weekend and see how they work
  9. nastynatesfish

    nastynatesfish Well-Known Member

    finally got a load to work for the new remington.
    162gr amax with 65gr or reloader 22.
    this is 8 rounds at 100yds. the first 3 were shot off my rest off the hood of my truck then i went prone. wind was about 10mph. i think its gonna work up good.

    Attached Files:

  10. Clark

    Clark Well-Known Member

    The 154 gr Hornady round nose bullets are not accurate in 7mmMauser or 7mmRemMag for me.

    The 162 gr Hornady SST is very accurate for me in 7mmRemMag with either 62.8 gr H4350 or 68.3 gr Re22.
  11. Jefferson Herb

    Jefferson Herb Well-Known Member


    A 1-9 twist should be good with heavy bullets.I use 175gk w 63gr H4831,and it will shoot well;160 accubonds should be good w/65gr H4831.I'll be trying H1000 someday,still have H870 to use up.
  12. Zak Smith

    Zak Smith Moderator Staff Member

    For the 162's or 168's, I use somewhere around 70 grains of RL25. Excellent accuracy and velocity in my AI.
  13. ForneyRider

    ForneyRider Well-Known Member

    Lyman data has 68.5gr of R25 with 168gr SMK as max load.

    I went from min to max in .5gr increment with R25 and SMK, but was 200fps below the expected velocity and the accuracy was mediocre.

    I went back to R22.
  14. Zak Smith

    Zak Smith Moderator Staff Member

    I don't use the 168 SMK because its BC is downright terrible for a 160+gr 7mm bullet (less than 0.5)
  15. shaggy430

    shaggy430 Well-Known Member

    I like 150 gr. Nosler Partitions over a max charge of IMR4350. Kills animals like lightning.

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