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Thread: The perfect Big 7.

  1. #16
    Member camo wsm's Avatar
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    Quote Originally Posted by Kiwi Greg View Post
    3000 fps + is easy enough with 180s given a sensible powder & barrel length choice from only 70-71 grains of powder
    Nice so 26 inch tube or 24? Have you built the 300 Blaser? Both look pretty interesting apart from the dies like you said

  2. #17
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    And the 7-300 Norma?

  3. #18
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by Cartman View Post
    Surely you'd get that from the practical also? Easy brass dies ect

    Sent from my SM-G930F using Tapatalk
    Being shorter its a better fit in a Tikka magazine with the 180s & less powder
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  4. #19
    DLW
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    Quote Originally Posted by Kiwi Greg View Post
    Being shorter its a better fit in a Tikka magazine with the 180s & less powder
    What's involved in converting a tikka cambered in 7mm rem mag ? Is it the same bolt face? Can the standard barrel be reamed out? Can you run the 180 eld's close to the lands and still fit a tikka mag? Saw a guy at the range with one the other day, think his had a 28" barrel. he reckoned he was getting 3100 with 180's awesome speeds for the size of the round

  5. #20
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    Thanks guys for comments & suggestions. I realise my wish list defies some of the laws of physics but hey why not ask.
    The 7mm Practical is too long COL, so that's not on the short list. Sounds like the best options would be the 7-375 Ruger, Blaser 7 mag, 7mm Dakota, and 7-300 Norma.
    Can u get the speed out of 22 or 23 in barrel ? (3150+ for 162 AMAX)
    Which one gives best barrel life ?
    Availability of brass & dies?
    Other options?

  6. #21
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    [QUOTE=Shootm;640195]Yep 7-375 worked well for me this morning.

    Hi Shootm what speeds and barrel length u running ?

  7. #22
    If your not fast your last Shootm's Avatar
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    [QUOTE=chainsaw;640308]
    Quote Originally Posted by Shootm View Post
    Yep 7-375 worked well for me this morning.

    Hi Shootm what speeds and barrel length u running ?
    3220 with a 26" barrel that's with 168gn Bergers

    I Have Sexdaily. I mean Dyslexia! Fcuk!

  8. #23
    Member camo wsm's Avatar
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    What action are you planning to build it off would help?

  9. #24
    L.T
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    I am possibly considering the 7mm blaser as well, and would recommend that. Especially if you are going with a shorter barrel. With the ELDM projectiles you have some impressive ballistics with a rifle should have very manageable recoil, obviously with a good brake. I wouldn't recommend a 7-300 Norma with a short barrel.


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  10. #25
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    Quote Originally Posted by camo wsm View Post
    What action are you planning to build it off would help?
    Probably a rem- a rem titanium would be great if could find one
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  11. #26
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    Quote Originally Posted by Kiwi Greg View Post
    3000 fps + is easy enough with 180s given a sensible powder & barrel length choice from only 70-71 grains of powder
    What length barrel and powder?

  12. #27
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by Echo View Post
    What length barrel and powder?
    26" with 2225 is a good place to start.

    I have other combinations to try which are showing plenty of promise.
    Contact me for reloading components, brass, projectiles, powder, primers, etc

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  13. #28
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    Much like north Korea and Iran, I'm starting to feel a bit insecure and undergunned reading this😉

  14. #29
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    The 7mm Blaser magnum case from Norma has a very thick web and base
    It handles pressure well
    But pressure shows up with sticky extractions if loaded up too hot after a few firings

    In reality the following are H2O capacity comparisons to top of case

    7mm Blaser Magnum 80.2 grains H2O
    7mm Blaser Magnum Improved 83.5 grains
    7mm Remington Magnum 85.0 grains

    The 7mm Blaser magnum is still a great case that fits in a Tikka magazine nicely but a 7mm Remington Magnum is simpler and cheaper to run
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  15. #30
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    Anyone improved a rem mag?

    Sent from my SM-G930F using Tapatalk

 

 

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