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Thread: Noveske N4 Light Carbine and Prvi Ammunition

  1. #11
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    Quote Originally Posted by 8200rpm View Post
    I'm not doubting the quality of the N4 barrel.

    Just soliciting experiences from others using a N4 and 55 gr. fodder (relatively inexpensive and widely available) ammo combination that does better than the Prvi M193.

    Federal XM193 (at 2004 prices) would fit the bill.
    If you’re set on 55 grain FMJ ammunition, you'll be hard pressed to find a better load than Hornady's. The muzzle velocity of Hornady's load was 3088 fps from a 20" Colt barrel with a standard deviation of 21 fps. The pressure curve of this load cycles common barrel lengths and gas systems well.





    It's currently loaded in new Winchester brass and charged with a short-cut extruded powder that tends to burn cleaner than typical ball powders. The words 55 grain FMJ and accuracy shouldn't be used in the same sentence, but the Hornady 55 grain FMJ bullet is the most consistently accurate bullet in that category that I have tested.


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  2. #12
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    Quote Originally Posted by Ziptie View Post
    I'll have to refer a friend of mine to this thread and these pictures, as he's fully convinced that a 55gr bullet out of a 1/7" barrel will keyhole all day long. One of the comments suggested the possibility of a grouping being the product of a piston gun? Now I've never owned, nor shot a piston gun, but I'm not able to viaualize how a piston system would affect accuracy. Can someone explain?
    M193 out of a 1/7 twist barrel will not keyhole at 100 yards. Barrel diameter abnormalities would be the only possible way for a keyhole. 1/7 and 1/9 aren't that far off. Its not a 1/12 trying to shoot Berger 80 VLDs at 500 M. Truthfully a 1/7 should shoot M193 just fine. It's an overblown issue, except 1/9 barrels are not good for 75 gr Home Defense Ammo. My 1/9 will shoot 69 gr SMK handloads really well out to 200 yards. Don't know beyond that but somewhere out there the difference would show up and it's largely irrelevant to the rifle's effective envelope.

  3. #13
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    Quote Originally Posted by Ziptie View Post
    One of the comments suggested the possibility of a grouping being the product of a piston gun? Now I've never owned, nor shot a piston gun, but I'm not able to viaualize how a piston system would affect accuracy. Can someone explain?
    Here's some data on that subject.

    https://www.m4carbine.net/showthread...ighlight=molon
    Last edited by Molon; 08-02-09 at 00:35.
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  4. #14
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    Quote Originally Posted by Ziptie View Post
    I'll have to refer a friend of mine to this thread and these pictures, as he's fully convinced that a 55gr bullet out of a 1/7" barrel will keyhole all day long.
    . . . and here's some data for your gyroscopic stability challenged friend.




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  5. #15
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    Quote Originally Posted by Molon View Post
    . . . and here's some data for your gyroscopic stability challenged friend.




    Fine shooting!!!!!! What type of scope where you using???? Nice groups.....

  6. #16
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    That's great! I knew there would be plenty of shooters out there to chime in. I've already emailed this thread off, now it's not just me yakkin'!

    Ziptie

  7. #17
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    Molon,

    You wouldn't happen to have an accuracy vs. Cost per round graph, would you?

    If anyone has it, you would. I would think that for a lot of us, the bullet weight would come secondary how accurate it is, especially for practice and classes.
    I just did two lines of powdered wig powder, cranked up some Lee Greenwood, and recited the BoR. - Outlander Systems

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  8. #18
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    Quote Originally Posted by FromMyColdDeadHand View Post
    Molon,

    You wouldn't happen to have an accuracy vs. Cost per round graph, would you?

    If anyone has it, you would. I would think that for a lot of us, the bullet weight would come secondary how accurate it is, especially for practice and classes.
    Accuracy is barrel dependent. Accuracy vs. $/round would be only be applicable to the barrel with which it was determined.

    My original question (Anyone have better luck with your N4 with other brands of 55 gr. fodder?) is potentially flawed since there's always the possibility of two N4 barrels behaving differently even with the same brand/type of ammo.
    Last edited by 8200rpm; 08-02-09 at 02:33.

  9. #19
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    Accuracy with 55 grain XM193 and Wally world white box is about 2 MOA with my N4 light barrel. The Priv M855 is horrible with the N4 and my Colts. I have not shot the Priv 55 grain stuff yet, but my N4 light loves 75-77 grain ammo. I have shot some very tight groups with Hornady 75 grain TAP

  10. #20
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    Quote Originally Posted by hammonje View Post
    Fine shooting!!!!!! What type of scope where you using???? Nice groups.....
    Leupold VARI-X III and Leupold Competition scopes.
    All that is necessary for trolls to flourish, is for good men to do nothing.

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