NEW cartridge !!!

Discussion in 'General Rifle Discussion' started by stalkingbear, Oct 19, 2007.

  1. .243

    8.8%
  2. .25

    1.8%
  3. 6.5mm

    31.6%
  4. .277 (270)

    5.3%
  5. .284 (7mm)

    29.8%
  6. .30

    8.8%
  7. .32

    1.8%
  8. .338

    15.8%
Multiple votes are allowed.
  1. stalkingbear

    stalkingbear Well-Known Member

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    Yall remember you heard it here from ME first. I'm going to design a new cartridge or 3 by necking down the .375 ruger case to 7mm,30,or 6.5mm.
    I feel this will make a outstanding round with substantial increase over 7mm rem or 300 win while staying within standard length action. Let's have a vote to see what yall think I orta build 1st. I'm kinda partial to 7mm diameter bullets myself.
     
  2. matt g

    matt g New Member Supporter

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    Have you done any ballistics analysis on the bullets listed yet? Some of them sound like they'd have really 'humpy' ballisitics and odd terminal ballistics.
     

  3. rickrem700

    rickrem700 New Member

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    375 Ruger

    I think there is room for one more fabulous 7 , good choice, wildcating the wildcat, well, you got to start somewhere!!! You should start a thread about what to name it, weather it lives or dies it will need a name, a little input never hurts. good luck.
     
  4. stalkingbear

    stalkingbear Well-Known Member

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    re: new cartridge

    Matt,I've only ran sierra infinity ballistics and create cartridge programs. I'm going to send dummy cartridge to have reamer made in next few days.
    Rickrem,your correct that marketing is everything in today's shooting world.
    I'm not naive enough to expect to make money off this,just want a useful cartridge. I've experimented in past thruout the past 27 years all the way up to .416 rigby cases necked down before among others. :D
     
  5. matt g

    matt g New Member Supporter

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    You should call it the 7mm SOCOM. You'll sell the bullets quicker than you can make them. People will buy anything labeled SOCOM these days.

    If the computer ballistics look good on all of the rounds, why not run a small batch of each and see which one shoots the best?
     
  6. rickrem700

    rickrem700 New Member

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    375 Ruger

    I was wanting to know if you go with the 7 mm ( .284 ) Are you going to go with the lite 139 grain or the heavyer 175 grain or somthing in the middle, and what platform are you going to test from, please include rate of twist, I do alot of reloading but have never messed with creating somthing new, but now you got me thinking!!! This would take it to an all new level, and drive my wife compleatly nuts!!!
     
  7. stalkingbear

    stalkingbear Well-Known Member

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    7mm/375 wildcat

    I thank you rickrem for the interest and response. I'm going to use 1 of my trusty ruger #1s as I can put a 28" barrel on it and it'll be same oal as a conventional bolt rifle with 24" tube,barring that,I'll use a browning a-bolt action as I have in past used both of these platforms. I think 28" lilja,hart,or krieger barrel with 1-11 twist will work for 140s just fine from experience.
     
  8. rickrem700

    rickrem700 New Member

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    Wild cat

    I've been thinking about this alot latly, this has the potencial to be one smoking mother hummer, I have a small family of Remington 700 ultra mags that I shoot long range with, not competition just for myself, I love all the math and probability of it all, primarly I use the 300 ultra mag on a 700 Sendero 11 platform, Remington came out with a three phase ammo package that gives you a pick of .308, 30-06 or 300 um. I thought this was a pretty good Idea to offer it commercialy, mostly for guys to buy one nice rifle and have the choice of rounds for differant applications, I know most of us hand load but for the guy who dos'nt this is a nice option, So I am thinking the Ruger .375 case is big enough to do the same like 7 mm-08 , .280 , 7 mm rem mag or what ever, I look to see other manufacturers start useing power level application on ammo that can be loaded real hot and also be available in a little cooler load, it gives them a great marketing edge!!! How fast of bullet are you shooting for? just a ruff estement will do,
     
  9. greydog

    greydog Member

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    If you neck it to 30 cal, you will have the honor of re-inventing the 30 Newton ninety-some years later.
     
  10. Catfish

    Catfish Member

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    Just my thoughts, but I would think I would go with the 6.5 mm. There are alot of very good long range bullets available for it.
     
  11. rickrem700

    rickrem700 New Member

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    New cartridge!!!

    was just wanting to know how the new bullet was coming along???
     
  12. Rosko Packer

    Rosko Packer New Member

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    new 7mm

    Why don't you call it the seven seventyfive, or the seven seven five? I think it has a nice "ring" to it. WDYT?
     
  13. Harrishawk2

    Harrishawk2 New Member

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    I have actually already necked down the 375 Ruger down to 338 cal with a sharper shoulder. My cartridge shoots great from my 15" Encore pistol. I am currently working on getting custom brass made with my cartridge headstamp. Plus my next project is putting a 18.5" barrel on a new mauser action and chambering it for my cartridge. My uncle and I are still working on different loads/velocities for this cartridge. But with the load settled on (prior to hunting season) is getting excellent accuracy. This cartridge has already taken down a couple deer in their tracks. So, I would either suggest .308 or .284(7mm) for your cartridge as those are the next two that I was thinking about creating. If you have any questions feel free to send me a PM and I will respond as soon as possible.

    Eric
    USAF
     
  14. Kent E

    Kent E New Member

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    I would just like to see what would happen with the .243
     
  15. stalkingbear

    stalkingbear Well-Known Member

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    I havn't had a chance to do much on finalizing it yet. I have both rougher & finishing reamer, that way when I get back on it I'll be able to ream my own forming/loading dies. Just have had a little bad luck with health here lately. I'll be getting back on it soon. Neil
     
  16. hatchet

    hatchet New Member

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    stalkingbear,

    How's the 7mm-375 looking?? I saw the case and thought likewise in the .284 caliber. Did you have the reamer made yet?? I am interested

    hatchet
     
  17. dnthmn2004

    dnthmn2004 New Member

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    Sorry to hear that. Hope you feel better! Any chance of loading some pics of what you got going so far? Production process?
     
  18. stalkingbear

    stalkingbear Well-Known Member

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    Good news! My brainchild creation is grouping UNDER 1/2" at 200 yards while traveling 3375 with an 140 gr bullet. Remember this is from an standard length 06 action. I'm sure I'll be able to increase velocity without sacrificing accuracy as I work more with loads for it. Neil
     
  19. tuck2

    tuck2 New Member

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    I looked at the 3rd Ed of The HANDLOADER'S Manual Of Cartridge Conversions . The Ruger round was not listed. What is the case capacity( Gr of water) ?? There are a bunch of good bullets to be had in the .264., 284, and 308 Dia. Then there is the question of rifleing. Will you be using an heavy bullet (fast twist 1-9) or light bullets (slow twist 1-12) . Give us more details , like 20 or a 26 inch barrel...Over the years there has ben hunderds of wild cats..Give me the Gr of water capacity of the case , What you plan on shootin, target at 1000 Yds or pronghorn, or elk, and then I,ll give you a bore diameter..
     
  20. big shrek

    big shrek Well-Known Member

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    I'd lay odds that if made for 6.5, it'd give the 6.5 Creedmore round a run for it's money.