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Thread: best bullet for 16" 308 1 in 10 and 1 in 11 twist rates for long range shooting

  1. #1
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    best bullet for 16" 308 1 in 10 and 1 in 11 twist rates for long range shooting

    I am looking to shoot groups on steel targets at longer distances.

    What is the best bullet weight and configuration?

    Which bullet?

    Factory loads?

    How far can a good shot make a good rifle such as this shoot? 800 yards plus?

    I will be using a NF SHV 4-14x50 Illuminated MOAR reticle scope.

  2. #2
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    A 16-inch rifle isn't your best bet for shooting a 7.62 for long-range. If you were at a higher elevation (i.e., out west in the Rockies) you'd have the advantage of thinner air (each additional 1,000 feet of elevation giving you a like-equivalent of an extra inch of barrel length).

    800 yards, no sweat. After that you'll need experience, finesse, and a good spotting scope (and a spotter-coach perhaps) for doping winds.

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    Can't speak for all 16" guns, But I've been around and shot a few 1-10 and 1-11 16" guns and most of them have liked the Federal GMM 175gr SMK loads and the Barnes Precision Match 175gr loads. 168s were hit or miss, but 175s did alright.

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    Quote Originally Posted by cougar_guy04 View Post
    Can't speak for all 16" guns, But I've been around and shot a few 1-10 and 1-11 16" guns and most of them have liked the Federal GMM 175gr SMK loads and the Barnes Precision Match 175gr loads. 168s were hit or miss, but 175s did alright.
    I just bought a box for the Federal GMM 175 SMK to try. I also bought a box each of the Creedmore 167 and 175 match loads. I hear the 168 SMK bullet, originally designed to optimal for 300 meters, does not do well as the velocity slows below 1400 fps down to the sound barrier.

  5. #5
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    Factory 168 Match King Fed Gold Medal Match out of a 24-inch 1-12 barrel starts having trans-sonic stability issues at around 875 yards in the summer at 300 feet above sea level. A 175 will have issues just short of 1,000 if you're using a 1-11 or 12 twist.

    For 1,000 yards with a Sierra 175 you generally want 2550 fps muzzle velocity (or better) with a 1-10 twist. A 16-inch tube (even with a tight twist) will be around 2475, and the Lapua 17 and 175s will be around 2485.

    A 185 Berger Juggernaut shot from a 20-inch 1-10 is stable to 1,000.

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    Quote Originally Posted by sinister View Post
    Factory 168 Match King Fed Gold Medal Match out of a 24-inch 1-12 barrel starts having trans-sonic stability issues at around 875 yards in the summer at 300 feet above sea level. A 175 will have issues just short of 1,000 if you're using a 1-11 or 12 twist.

    For 1,000 yards with a Sierra 175 you generally want 2550 fps muzzle velocity (or better) with a 1-10 twist. A 16-inch tube (even with a tight twist) will be around 2475, and the Lapua 17 and 175s will be around 2485.

    A 185 Berger Juggernaut shot from a 20-inch 1-10 is stable to 1,000.
    Seconded.
    Jack Leuba
    Director of Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  7. #7
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    The heavy .308 pills are nice, but I've had the best luck with 155gr class bullets. (bolt guns 20+") The scar 17 I just sold shot berger vld hunters into sub .75 @ 100 but unfortunately I was never able to take it to range. I have a 16" LMT MWS on the way that I plan on doing some pretty in depth comparisons when it comes to 155 vs 175's.

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    Anyone shot 155gr class bullets at 1000+ yards?

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    Quote Originally Posted by Little Creek View Post
    Anyone shot 155gr class bullets at 1000+ yards?
    It's a lot like playing roulette.
    Jack Leuba
    Director of Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  10. #10
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    Yep. You want at least a 28-inch barrel kicking them out around 2800-2850 fps. Not gonna make that out of a 16-incher. Tried it with 155 Lapua Scenars out of a 16-incher between 4,500 and 6,500 feet MSL.

    There's Lapua, two types of Sierra (Match King and Palma), Hornady, and Nosler.

    While they'll definitely fly further they're not going to make a precision hit unless you shoot them from a bolt gun. The old adage, "Sir/Sergeant, 7.62mm tracer burn-out (from an M60 or M240 machinegun) is 1100 Meters" applies -- but that's a beaten zone weapon (vice shooting for a single E-type).

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