LETS TALK SEVENS

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by elkaholic, Apr 9, 2019.


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  1. elkaholic

    elkaholic Official LRH Sponsor

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    IMG_20190410_111919771.jpg With all the rage on the 6.5's of late, let's discuss the Merits of the 7's, particularly the short actions.
    I have noticed a big run on my 7SS lately and these are the common reasons that I hear.
    When I run the numbers, I can't find anything else that compares that will run a 180 class bullet with 61 grains of powder in a 2.9" magazine at 3000 fps!
    I really like the extra pop of the 7mm coupled with flat trajectory.
    It really stacks up well with wind bucking ability coupled with amazing range before going transonic, and the list goes on.
    Recently we added a slightly milder little brother with a shorter yet coal and offering smooth feeding in any short mag configuration. When I say slightly milder than the SS, it is still comparable in velocity to a standard saum only at sub 2.9" coal.
    Last but not least, big brother Max which is at least the ballistic equivalent of the WSM only with far better design and case life. It will perform best at 3.1" which is what most of the short action competitors should be to perform at their best. The problem is, they still won't keep up with Max!
    When you add quality head stamped Sherman (ADG) brass to the mix and reamers and dies in stock, you will be hard pressed to top the 3 Amigos pictured below with the Saum. The rounded shoulder on the Max doesn't really do the case justice. I had to improvise a hydro forming and the fired case will be squared up like the SS only farther forward of where it looks now. You get the idea.
     
    Last edited: Apr 10, 2019
  2. Varminator 911

    Varminator 911 Well-Known Member

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    Is the one on the left the 7 SST?
     
  3. elkaholic

    elkaholic Official LRH Sponsor

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    Oops! Dang I re did the pic then screwed up the description. Yes it is
     
  4. HARPERC

    HARPERC Well-Known Member

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  5. RockyMtnMT

    RockyMtnMT Official LRH Sponsor

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    Rich, is that a radius shoulder design?
     
  6. elkaholic

    elkaholic Official LRH Sponsor

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    HARPERC likes this.
  7. MudRunner2005

    MudRunner2005 Well-Known Member

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  8. elkaholic

    elkaholic Official LRH Sponsor

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    No, I'm afraid it was a result more than a design! I was trying to get something for show and tell and used my 6.5 SS hydro die to form it. That was the most pressure I could exert so ended up with a "Shermerby":D
     
  9. MudRunner2005

    MudRunner2005 Well-Known Member

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    There's a reason why I've always been a fan of the 7mm caliber. And that is because it hits like a .30, has less recoil than a .30, flies fast & flat like a 6.5, but has heavier bullets than a 6.5. Most 7mm bullets have excellent BC's.

    Just my personal opinion.
     
    Doug Herold, Frenchie1, MELEX and 5 others like this.
  10. coop2564

    coop2564 Well-Known Member

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    I can't even imagine not having a 7mm, 12GA. and a 22 cal. I could do without all others...not that I would want too though!
     
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  11. J E Custom

    J E Custom Well-Known Member

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    I believe that the 7mm,s are probably the most versatile caliber available. with a range of cartridges from the 7 TCU (A 223 necked up to 7 mm) to the 7 mm RUM, You can pick a power level you want and shoot or hunt almost any distance or game.

    With bullet weights ranging from 90 grains to 200 grains and well over 100 different brands, styles in different weights that is a huge selection
    that allows for the proper bullet and weight for many different powder capacity cartridges.

    Recoil on many 7 mm,s is very manageable in the smaller cartridges and can be used from varmints to big game depending need and game to be hunted.

    Add to all of this,are all of the fine wildcats in 7 mm, and whats not to like.

    J E CUSTOM
     
    Last edited: Apr 10, 2019
  12. elkaholic

    elkaholic Official LRH Sponsor

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    Well stated!
     
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  13. waspocrew

    waspocrew Well-Known Member

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    If I go back to a 7mm, I'm pretty sure the SS will get the nod. Especially with headstamped brass. For now, I'm keeping busy with my 6.5 Sherman, 300 and 338 RUM!

    I always enjoy seeing the new cartridges rolling out, keep up the good work Rich!
     
    MELEX and elkaholic like this.
  14. SavageHunter11

    SavageHunter11 Well-Known Member

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    This is exactly why my current build is in 7mm (280A.I.). As much as I love the 6.5mm bullets, there's no denying the overwhelming versatility of the 7mm especially in long action and magnum cartridges.