The .270 win , or not the .270 win ?

Discussion in 'Long Range Hunting & Shooting' started by rollin the dirt, Nov 1, 2011.

  1. rollin the dirt

    rollin the dirt Member

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    Hi all,

    I have an an old Remington 700 in .270 win that my Dad gave me that I want to make into a long range rig, shooting out to 800 to 1000 yards at deer. I am going to true and square the action, bed it in a Mcmillan edge stock, work over the trigger and put on a 27" Shilen barrel. The .270 win or not .270 win that is the question? Matrix Ballistics is making several bullets for the .277 that have really nice BC.


    277 caliber VLD hunting bullets
    top of page


    [​IMG]Caliber Inches: .277
    Weight, grains: 165.0
    Core Density, lb/ci-in: 0.4097
    Core Weight, grains: 118.3
    Jacket Density, lb/ci-in: 0.32
    Jacket weight, lb/ci-in: 46.7
    Ogive Radius, calibers: 13.0
    Meplat Diameter, inches: 0.06
    BC (static): 0.7381 .277 165GR VLD
    $47/100 PCS
    [​IMG]

    [​IMG]Caliber Inches: .277
    Weight, grains: 175.0
    Core Density, lb/ci-in: 0.4097
    Core Weight, grains: 126.3
    Jacket Density, lb/ci-in: 0.32
    Jacket weight, lb/ci-in: 48.7
    Ogive Radius, calibers: 13.0
    Meplat Diameter, inches: 0.06
    BC (static): 0.7828 .277 175GR VLD
    $48/100 PCS
    [​IMG]


    Caliber Inches: .277
    Weight, grains: 165.0
    Core Density, lb/ci-in: 0.4097
    Core Weight, grains: 118.3
    Jacket Density, lb/ci-in: 0.32
    Jacket weight, lb/ci-in: 46.7
    Ogive Radius, calibers: 13.0
    Meplat Diameter, inches: 0.06
    BC (static): 0.7381

    Caliber Inches: .277
    Weight, grains: 175.0
    Core Density, lb/ci-in: 0.4097
    Core Weight, grains: 126.3
    Jacket Density, lb/ci-in: 0.32
    Jacket weight, lb/ci-in: 48.7
    Ogive Radius, calibers: 13.0
    Meplat Diameter, inches: 0.06
    BC (static): 0.7828

    Is the old 270 going to be able to push these heavy pills ?
    Will I need a 1-8 or 1-9 twist to keep the VLD's stabilized ?
    I like the .270 win but maby I need to look at a different caliber ?

    Thanks for the info.
     
  2. liltank

    liltank Well-Known Member

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    Me personally, if I go 270 it will be in the WSM. You can push the matrix bullets pretty hard. Maybe consider that instead of the Winny. Otherwise I don't see why not. You just won't be breaking any speed barriers with it. I would opt for the 1:9 twist. You shouldn't need any tighter twist than that.

    Tank
     

  3. rollin the dirt

    rollin the dirt Member

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    Sorry about the double post on the bullet info.
     
  4. rollin the dirt

    rollin the dirt Member

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    If I went with the WSM would I need to change out bolts?
     
  5. liltank

    liltank Well-Known Member

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    Yep, would need a magnum bolt face. Maybe doing a 270AI? If it worked for the 280, can't see why you couldn't do it with the 270.

    Tank
     
  6. brentc

    brentc Well-Known Member

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    The bolt would work fine, you'd need to open the bolt face to accept the magnum. You'd also need to make modifications to get it feeding properly with the WSM.
     
  7. rollin the dirt

    rollin the dirt Member

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    How fast do you all think I could push a 165 gr or 175 gr out of the old .270 ?
     
  8. bigngreen

    bigngreen Well-Known Member

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    What elevation are you hunting at? The Matrix BC's are a calculated BC, so far the consensus is somewhere around .650 for the 165 and .700 for the 175, the .650 has been spot on for me out to 1435 yrds.
     
    Last edited: Nov 1, 2011
  9. Top Cat

    Top Cat Well-Known Member

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    I like the 270, it's a decent choice for normal hunting, but if I were going to build a custom LR rifle from the ground up, I sure wouldn't chamber it in 270 Win.

    Eventually, the goal is to send some bullets down range, and with the 270 you are starting out at a practical disadvantage over several other calibers with inherently better ballistics and considerably better bullet choices.

    TC
     
  10. budlight

    budlight Well-Known Member

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    I have a 270 win with a 28 inch target barrel. I achived 2880 fps with limited load development. I only had 100 wildcat 169.5 grain vld rounds. I think that R-25 or h1000 or even Retumbo might have worked I was using imr 7828 with rem mag primers
     
  11. WildRose

    WildRose Well-Known Member

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    There are so many better performing cartriges and better bullett selections in them I've always felt a .270 would be a waste of time and money.

    If I wanted something similar but slightly better performing I'd go with something in a .280/7mm or .264/6.5mm.
     
  12. bigngreen

    bigngreen Well-Known Member

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    I haven't finished the load development yet on a 270 Win but 2850 fps seemed to be near the top end with 7828 with the 165 Matrix, I have not shot the 175 from a Win so no hard data there. We've been running the both Matrix bullets in a 1-10 twist but I'm at 6000 ft a 1-9 should be ideal with the 165 in a Win at any elevation. I think a 270 AI or similar would get you some leeway at a 1000yrds, the 270 WSM would be well worth the little work you would need to do for the big gain it would be. I idle the 165 at 3053 and so far the 175 likes 3014 fps, you'll have a hard time out running it with any 6.5 or 7mm without burning a lot more powder. The 270 WSM is an ideal 1000yrd deer cartridge with the 165's, there is a definite difference when hitting game with the 165 Matrix and a 140 Berger. The 270 is at no disadvantage, some calibers just need a few bullets others need to compensate :D
     
    Last edited: Nov 1, 2011
  13. rollin the dirt

    rollin the dirt Member

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    bigngreen,

    I am at 950' elevation.

    If I can get 2850 fps out of the 165 gr bullet, the G7 ballistics calculator says that with a BC of .650, the bullet is still supersonic till 1600 yards and at 1000 yards has 1017 ft-lb of energy.


    If this info is correct than this would hit harder than a .260 rem with 142 gr bullet and would have almost the same BC as 7mm mag with 180 gr Burgers (.659).

    The question is, how accurate is the .270 win with 165 gr bullets at 1000 yards?
     
  14. WildRose

    WildRose Well-Known Member

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    How accurate will vary with each rifle and load at any distance.

    Typically the highest BC wins for potential accuracy though.