Brass 7mm rm

Discussion in 'Reloading' started by Fla shooter, Apr 22, 2012.

  1. Fla shooter

    Fla shooter Well-Known Member

    Jan 11, 2012
    Tell me what is working for you .im trying nosler with ok results
  2. 7stw

    7stw Well-Known Member

    Jan 21, 2010
    In a word, and the best bang for the buck is Norma. Very consistent, good life, and dosen't stretch much. Initially a little pricey, but in the long run, well worth the bucks. I have had good luck with the neck tension, which is something that the domestic brass just doesn't have anymore. Winchester USED to be the best that I had used, but the the new stuff is soft, thin, and usually don't get many firings. The old stuff, I could get 6-8 reloads out of it. The new stuff, 3 loads and it is junk. All of the above is IMHO, but I am sure there are lots that agree. Stay away from nickel plated brass if possible.

  3. kermodie

    kermodie Active Member

    Apr 6, 2012
    The above listed brass is all good.

    I use Winchester, neck sized, 0.0015 neck tension, and get more than a dozen reloads before retiring them. They still look good with no thinning of the wall above the web (but I figure they served their life at that point). Velocity and runout are both excellent.

    I don't run extreme pressure though - 2960 fps with 162 A-max. 3050 fps with 168 Burger.
  4. 7 loader

    7 loader Well-Known Member

    Oct 9, 2009
    I am by no means a comp shooter just a hunter. I do like Norma brass but found that remington nickel brass works very well in my gun. .50 in grps at 100 yds. I have gotten 8 loads sofar and no real probs.
  5. reelamin

    reelamin Well-Known Member

    Feb 13, 2012
    Never found bad brass from R-P, W-W, or Fed. Sure there are some that cost more, and if your punching paper it could help. You can do the same thing by simply sorting and uniforming any of the ones I listed.
    I usually go with R-P because it is available to me and the cost is affordable. If it won't shoot then I go to W-W then Fed for the same reason. Would hate to find a load I like then can't get the brass.
  6. rscott5028

    rscott5028 Well-Known Member

    Apr 18, 2010
    Norma is by far the best I've used for 7RM.
  7. Wile E Coyote

    Wile E Coyote Well-Known Member

    Nov 22, 2010
    I have 20 pc. of R-P 7mm RM that was factory ammo; probably 10 or more years old before I bought it. Those cases now have 11 firings on them. There is no sign of the case wall thinning; I check each case after each firing with a RCBS Casemaster and log the results. I intend to reload these until the first sign of wear and tear, stretch, cracks, splits ect. to see how far they will go.

    The first couple of loads were mixed charges while working up the load for the rifle. That turned out to be 72.4gn of Retumbo under a Berger 168VLD with a CCI250 primer. They are neck sized give .0015" neck tension and the shoulder is bumped .015" for each loading.

    I also have some Hornady brass that is prepped identically and shows no sign of any impending issues. This brass has only 3 or 4 firings on it.

    None of the brass has been annealed after it left the factory.

    On the other hand I have some 30-06 I load for my M1 Garand. I don't recall the load but it was the middle of the range for H4895 in the Hornady #7 Manual for a 147 FMJ. The last batch of R-P started to split the necks after 3 firings.

    Without measuring anything, I'll bet the difference is the quality and specs of the chambers. The 7mm is from Hart where as the Garand is a mid to late 50's SA military barrel.

    Be easy on the brass and it will last longer.

    my .02
    Last edited: Apr 23, 2012