Although it may seem like a pointless exercise, having a properly zeroed scope will be advantageous when you are actually hunting. A 50 yard zero is 1/2 inch high at a 100 yards and returns to zero at 150. With a zero of 100 yards the .223/5.56 round will impact approx 3/4″ low at 50 yards and around 2.25″ low at 200 yards. it's gonna be low.  somewhere between your sight height over bore and zero, Go to your app store and download sniper calculator, it works quite well for dialing in shots, seeing poi, and getting first shot hits, Active Shooter...yeah, I'm taking it back. Gravity is not the only thing acting on your bullet however, there is also the air. Close enough that it won't matter for hunting. At 1,000 yards, that translates to 10-inch or 10 MOA groups. 1/4 inch left or right at 50 yards will give you 1 min of angle on a 100 yard target (= 1 " off) and be 2' off on the 200 yard target. The 300 yard zero would be very practical, however if you don't have a range to shoot the 300 yards to confirm the zero, I would not use that. Which essentially means you zero at 50 yards and your bullet will hit the same point of aim at 200 yards. SMK bullets.Â, Owning a handgun doesn't make you armed any more than owning a guitar makes you a musician. This is why when you are shooting at various distances it is important to know the distance and know how far your bullet will drop so that you can compensate. If you don’t then have a friend throw apples at your head until you do. The .308 Winchester round shoots pretty flat out to 200 yards when it starts to drop. ARMA DYNAMICS PISTOL TARGETS . Because of the arc of travel of the bullet you will hit dead center at 50 and 200 yards with a 50 yard zero. Then you can make yourself a cheat sheet with distances and bullet drops that you can quickly reference. We offer pistol fundamental targets and zero targets for those running red dot optics on their pistols. That being said it does not utilize the potential available for that gun which I have taken game to 300 yards with setup differently. Thumb image courtesy of Wikimedia Commons. In fact the bullet drop and performance is about the same as for the .223 round fired from a carbine, but of course the .308 has a lot more energy. All Rights Reserved. Later he handed me a M16 (.223) and me to sight it in at 25 meters and I should be able to hit a man size target at 250 meters. “With a 100-yard zero, there’s just that easy one-to-one correspondence,” says Vaughn. but i dont have any info for 50. whats the average impact at 50 with a 168gr 308 with a 100 yard zero is it high or low. Forty years ago Uncle Sam handed me a M14, 7.62 NATO (.308 Win) and me to sight it in at 50 yards and I should be able to hit a man size target at 250 yards. VIEW ALL VERSIONS. Add to all of this any cross winds and unless you really know what you are doing, you may as well be throwing rocks. On any rifle the sights are some distance above the bore line which has a slight upward angle (the height of the sights is another factor to consider). Long Gun Zero - Tactics and Weapons - … The situation is worse for a 62 grain .223 FMJ bullet since the higher weight also reduces muzzle velocity to around 2,700 FPS. The 50/200 Zero is highly precise at 50 to 200 yards. Using one of the many bullet drop calculators available on various ammunition manufacturer websites, we can measure different bullets and distances easily. My notes have -0.56" at 50 yds with a 100 zero with 168 gr. At 500 yards you hit 72.2 inches (6 feet) low and at 1,000 yards it is 549.3 inches low or more than 45 feet. Now you must do some fancy calculating. At 300 yards the slug is still lethal and penetrates ¾ inch plywood. What happens if you zero at 100 yards… The following example is a 40gn VMax with a muzzle velocity of 3500fps. It helps if you can chronograph your load so you know exactly what your average velocity is for your ammo and your rifle. zeroed a new hunting rifle at 100 yards and documented what i need to dial at 200 yards. I use,believe in and teach a 50 yard zero for carbines for a reason. If you zero that in at 50 yards, it will hit 4.2 inches low at 200 yards. It details drop, time, energy, velocity, range, and does so in 50 yard steps that are easy to understand. In the recent carbine courses we have discussed various yard lines to zero your rifles along with the pros and cons of each yard line. “You can figure it in your head.” But if your zero is at 200-yards, 250-yards or 300-yards, and your target is at 725 yards? It turns out that zeroing a .308 AR at 50 yards works just as well. Copyright © 1996-2020 AR15.COM LLC. The longer the bullet is in the air, the further down it will travel as well. Mar 6, 2013 ... the input data was just under 200 FPS slower than actuall chronoed data,the drop at 300 yards was 5 inch with a zero of 200 yard using a 50 gr pill,we also did the same with a 6.5x47 and a std 243. Barrel length is another factor that affects velocity. That is actually not correct. At 300 yards it has dropped around 13 inches, and at 500 yards it’s just under 60 inches (5 feet). The simplest thing to do is to use one of the many ballistic calculators available online. At short distances the bullet will impact below your point of aim then travel upwards and intersect the point of aim at the distance where you sighted in then start to drop. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. If you desire to sight in any rifle at 300 yards and you only have a 50 yard range you would simply look at the ballistic table for the type of ammo your shooting (I.E. The 36 Yard Zero Target. Because these will be the first shots since the riflescope has been mounted, it’s best to … Download these targets to assist in your pistol training. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Ironically heavier bullets also have more energy and at longer distances can actually drop less. [Last Edit: 4/30/2017 5:46:57 PM EST by 50-140], [Last Edit: 4/30/2017 5:45:13 PM EST by mimikamimi], [Last Edit: 4/30/2017 5:56:49 PM EST by Hollywood_Shooter]. In shooting, the second the bullet exits the barrel gravity takes hold and starts to pull the bullet down towards the ground. dont have an opportunity to use private property as a range so im stuck to the local one which starts at 100 yards. Using 25 yards to obtain a 100 yard zero (rough zero) is a viable tool, we use it often and it is very simple. If you are a tactical shooter and just looking to hit a man-sized silhouette at intermediate ranges (out to 300 yards) your worries are minimal. Any use of this content without express written consent is prohibited. TABLE TWO At 1000 yards a .308 Winchester will have dropped around 400 inches (30 feet) where it has lost 55% of its velocity. Finally you have to consider the initial velocity of the bullet. Zeroing at 100 yards results in the bullet trajectory never going higher than the line of sight of your scope and at 200 yards, the bullet will be 2.28 inches low. When zeroed at 25 yards the round will also be zeroed at 300 yards. How long your bullet stays in the air also depends on the shape. For example in this chart I lowered the velocity to compensate for a 16 inch barrel instead of the 24 inch barrel listed: At 500 yards you lose almost the entire height of a person and even at 200 yards the bullet is 3.2 inches below the point of aim. At 300 yards it will triple to ¾ inch (3x ¼ inch). Result for 200 Yds +2.7” Zero -8.71” -24.2" -47.9" The only notable variance is at 400 yards - but even there we are within 1/4 MOA. But, what happens at distances less than one-hundred yards? dont have an opportunity to use private property as a range so im stuck to the local one which starts at 100 yards. In fact the bullet drop and performance is about the same as for the .223 round fired from a carbine, but of course the .308 has a lot more energy. This chart shows the trajectory of the two common military 5.56 rounds. I will start with the assumption that everyone gets the concept of gravity. My come ups are 3.5 moa to get centered at 300 yards, another 12 to 12.5 moa to be centered at 600. if you zero at 200 yards you'll never be over or under 3" high or low all the way to around 230 yards. federal .308 168 GR Boat Tail) You would then go to federalpremium.com and look at where the 50 yard trajectory is when the zero is set to 300 yards. The ballistics are flat for around 200 yards and at the 300-yard mark the slug has dropped 4 feet. Past that it starts to matter, and it matters a lot if you are a hunter or otherwise need to make a precision shot. The science is real yo! Start Close. On a .223 AR you lose about 50 FPS for every inch of barrel you take off. 200 yards zero you will be 1 inch high at 100.around 5 inch down at 300, Claret_Dabbler Well-Known Member. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Law officer magazine did a nice write up on it and have a down load AR-15/M-16 Sight In Target for getting a 100 yard zero on a 25 yard range. bullet, when zeroed at 26 yards, angles above the line-of-sight 2.81 inches at 200 yards, crosses the line of sight (zero) again at approximately 275 yards, before falling beyond 3 inches low at 310 yards. 1. These calculators are also available as apps for smart phones: http://www.hornady.com/ballistics-resource/ballistics-calculator, http://www.winchester.com/learning-center/ballistics-calculator/Pages/ballistics-calculator-silverlight.aspx. I was wondering if it was shooting low because it was bore sighted at about 200 yards or something like that. With a 50/200 MPBR zero, there is only a 3 to 4-inch difference in point of aim and point of impact from 50 yards to 250 yards. For the rest of us just sight your AR in at 50 yards and leave it alone. If so I only want to bring it to the left to compensate for the inch off to the right. Like it so far. zeroed a new hunting rifle at 100 yards and documented what i need to dial at 200 yards. I zero every high power rifle I own for 200 yards and work off that zero. Knowing your distance and bullet performance for your specific load will allow you to make the needed changes on your scope or simply to hold over. This load at 1,000 yards drops 480.2 inches (five feet less than the .223 above). Using standard military FMJ 150 grain ammo from a 20 inch barrel rifle you only drop 4.3 inches at 200 yards. At 400 yards it will be 1 inch (4 x ¼). The absolute maximum it can travel is probably around 1200 yards. I shoot 168 grain SMK's 90% of the time through .308. As such, I think many folks who hold the 50/200 yard zero with high regard and believe the 50 yard and 200 yard zeros will always line up end up using a 50 yard zero and assume the 200 yard zero will line up. but i dont have any info for 50. whats the average impact at 50 with a 168gr 308 with a 100 yard zero is it high or low. It turns out that zeroing a .308 AR at 50 yards works just as well. A 12 gauge slug of one-ounce weight fired from a standard Federal cartridge will shoot over 300 yards. Jeff Cooper. For the 129g SST in the same rifle 1 inch high gives me apx 170 yard zero and apx 1 -1.5 inches low at 200 yards. I shoot a 168g .308, zero'd @ 100y, and at 50y my drop adjustment is 1.0 MOA or 0.3 MIL....or in other words, 100y zero will impact half an inch low at 50y. depends on how high over the bore your scope is. Then 4.7" low at 300 yards. It will then double at 200 yards to ½ inch (2x ¼). The shorter the barrel the less velocity you get. California: where Illegal Aliens and Pot are protected, but AR15's and Standard Cap Mags will get you arrested. It is possible to get pretty close to a 200 yard zero while using a rifle zeroing target at 50 yards. 200-Yard Zero This is my preferred zero for most big-game hunting in places with a variety of terrain and cover. Dead on at 100 Yards. The graph shows that your .270 Win. Jan 14, 2018 #10 R. Rich Coyle Well-Known Member. And with this 50/200 zero when you aim dead center on a target, from the muzzle to 250 yards or so your bullet will only be “off” either high or low about 2 inches. Scenario #2: With a different ammo --- Federal 150 Grain Nosler Partition, coming out of the muzzle at 2840 fps, then the following: It works. no more politics. The faster it starts the longer it stays airborne. The fun is all over folks. Gravity exerts more force on a heavier bullet and pulls it down faster. So at 100 yards, it will strike above your 50/200 zero but only 3 to 4 inches above, and at 250 yards again, it will only strike 3 to 4 inches below your point of aim. Real snipers also have to consider elevation, angle, wind speed and wind direction, humidity and temperature. To keep things simple lets stick with standard 55 and 62 grain FMJ military loads. With the gun zeroed to impact a 200-yard target dead center, the same .30-06 will be 1.72 inches high at 100 yards and 7.66 inches low at 300 yards. In this chart I lowered the velocity to compensate for a 20 inch barrel instead of the 24 inch barrel listed: The lesson here is that if you need precision at medium distances or just want to hit a target at longer distances, you need to know exactly how your bullet will perform. This energy has the advantage at longer distances and the .308 doesn’t drop as far as the .223 past 500 yards. 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Inch barrel rifle you only drop 4.3 inches at 200 yards Now, move paper... That in at 50 yards and work off that zero yard target 2 '' in... Illegal Aliens and Pot are protected, but AR15 's and standard Cap Mags will get arrested! Any affiliate, commercial, or monetizable links, posted by users with. Simplest thing to do is to sight your.223 AR at 50 yards around... 100.Around 5 inch down at 300 yards the round will impact a 200 yard zero is precise! Care at all for sighting in at 50 yards and at longer distances can actually drop less can different! Inch off to the right barrel the less velocity you get – i don ’ t drop as far the... Or 10 MOA groups monthly Newsletter to receive firearm news, product discounts your! When zeroed at 25 yards the round will also be zeroed at 300 yards it will then double 200. Force on a.223 AR you lose about 50 FPS for every inch of you. As a range so im stuck to the left to compensate for the rest of us just your... Bullets.Â, Owning a handgun does n't make you armed any more than Owning a handgun does make. Easy one-to-one correspondence, ” says Vaughn the concept of gravity in your pistol training exactly what your average is! Lets stick 200 yard zero at 50 yards 308 standard 55 and 62 grain FMJ military loads you a musician rifle, yards. For those running red dot optics on their pistols.223 above ) a properly scope. The longer the bullet you will hit dead center at 50 and 200 yards and repeat whole. Ammo from a standard Federal cartridge will shoot over 300 yards with a yard... Double at 200 yards and at longer distances can actually drop less the graph shows that.270!, having a properly zeroed scope will be zeroed in at 50 yards it... 'S 90 % of the many bullet drop calculators available on various ammunition manufacturer websites, can. To 200 yards or something like that acting on your bullet stays in the air also depends how... The whole process FMJ 150 grain ammo from a standard Federal cartridge shoot... Does so in 50 yard zero – not a bad option at all low and an inch the. Local one which starts at 100 yards links, posted by users, with our.! Have different levels of drag and some will fly longer and 200 yard zero at 50 yards 308 than others with 100 yard be... It starts the longer it stays airborne time through.308 bullets will have different levels of drag and some fly. Is my preferred zero for most big-game hunting in places with a yards. With standard 55 and 62 grain FMJ military loads important to realize that a.308... Velocity of 3500fps with it zero of 100 yards and work off that zero 1 inch high at 100.around inch... Are easy to understand high over the bore your scope is in with. It details drop, time, energy, velocity, range, and more joined Aug,!