Custom Rifle Help: 7mm Cartridge Decision and BDL choice

Discussion in 'Long Range Hunting & Shooting' started by IdahoHunter208, Jul 21, 2019.


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  1. RH300UM

    RH300UM Well-Known Member

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  2. Elk Hunter 338

    Elk Hunter 338 Well-Known Member

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    1.-build a 7mag!
    2.-have it chambered and throated correctly for the 180 vld eldx or other high BC 180- offering they'll reach 3k pretty easily.
    3.- run a standard mag box even with them being extremely long.
    4.-get Hawkins BDL and follower.
    5.-shoot the hell out of it!!
     
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  3. Canhunter35

    Canhunter35 Well-Known Member

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    I just had a 7rm built and throated for 180s. Pretty wicked combo. So that’s what I’d recommend.
    Use the bottom metal the stock is inletted for
     
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  4. Orange Dust

    Orange Dust Well-Known Member

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    With the Wyatts cut you could build either an STW or 28 Nosler. They are the same animal in different clothes. STW requires longer OAL and brass is cheaper. It has a belt that is somehow out of style these days. The 28 has a shorter, fatter more expensive case that is all the rage today. After having two STW's, I just had a 28 built. Why? no valid reason other than I wanted to try and play with something new. I came within a knat's hair of doing a 7MM-300Win. Kinda wish I had.
     
  5. comen

    comen Active Member

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    I like the 7mm-300 win/or the practical , which should handle 180 Bergers with a 9 twist. I shoot 195s with an 8 twist, and can usually get 1/2 MOA at 800 yds, occasiopnally much better.
     
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  6. TwoMore

    TwoMore Well-Known Member LRH Team Member

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    HMMM , all my boxes of 195's say 1:8 on them but I know 1:8.5 will stabilize them that is what my rogue is
     
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  7. RH300UM

    RH300UM Well-Known Member

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  8. WAHOOYAHOO

    WAHOOYAHOO Well-Known Member LRH Team Member

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    1st congratulations on what will be a nice rig.
    I am super partial to the 28 caliber. My personal choice was the 7 Rem Mag and I have no regrets. It’s very shootable and will do what you’re asking it to; however, you already have a Wyatt’s box and you’re asking to kill elk at a grand. Not that the 7RM won’t do it but a bit more hp might be appreciated out there. If you’re a reloader, there are a few I’d look at and a few of avoid.
    Consider the 7 Sherman and 7 Practical (7-300 as it was intended). Nathan Foster actually prefers the 9 twist in the Practical.
    I would avoid the nosler. It’s a bruiser, hell on barrels, the cost of its “extra” performance is not worth it. 25% increase in powder, 30%increase in recoil for 7% increase in velocity and 1/5th the barrel life...

    https://www.ballisticstudies.com/Knowledgebase/7mm+Practical.html

    Note to Nosler fanatics: it’s not personal, just factual data.

    Also note: Nathan was not testing with 195 EOL, although I’m sure he since has. If the 195 is the projectile of choice I would choose a 1:8.5 or 1:8 for stability
     
    Last edited: Jul 22, 2019
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  9. Glenn J Voth

    Glenn J Voth Well-Known Member

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    7mm stw
     
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  10. lancetkenyon

    lancetkenyon Well-Known Member

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    There is a difference between OPTIMAL, and MINIMUM twist requirements. Berger's marketing figured they could sell to more people if they put the MINIMUM twist requirement on the box now, instead of the OPTIMAL twist rate like they used to print.

    [​IMG]
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    Choose a 7-08 pushing the 195 @ 2650fps, 1000' AMSL & 30°F, coastal WA OR, or some low elevation desert winter hunts.

    1:9" twist is barely stable at 1.21
    [​IMG]

    Just by going to a 1:8" twist, you are now fully stable @ 1.53.

    [​IMG]
     
    Last edited: Jul 22, 2019
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  11. archeratlrg

    archeratlrg Active Member

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    It's a bit retro but does anything the 28 Nosler or 7mm-300 will do. It's called the 7mm Mashburn Super and it's a hell of a round.
     
  12. IanCo

    IanCo Well-Known Member

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    I just finished a 7 Dakota last year and hoping my brass lasts as long as my barrel does. When it is time to re-barrel I will be going with another 7 that has cheaper and more available brass.

    Right now I would say in this order.
    7 STW
    7 Practical
    7 Weatherby mag
    7/300 Weatherby mag
    and possibly 28 Nosler...
     
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  13. Jud96

    Jud96 Well-Known Member

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    My 3 choices would be the 7mm SAUM, 7mm Rem Mag, and 28 Nosler. All three are popular with multiple sources for brass, and dies and reamers don’t have to be special or custom ordered. With a 9 twist, I would go with either Hornady 162 ELDs or Berger 175 Elite Hunters.
     
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  14. JJMoody

    JJMoody Well-Known Member

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    Practicality be darned; built a 7 Chey-Tac!!