What happens if you zero at 100 yards… The following example is a 40gn VMax with a muzzle velocity of 3500fps. [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]. Your bullet will be zero ar 25 yrds, then 2.7" high at 100 yards, 2.95" high at 150 yards, and 1.88" high at 200 yards, coming through zero once again at 245 yards. 100 Yard Zero – Not a bad option at all. 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. It details drop, time, energy, velocity, range, and does so in 50 yard steps that are easy to understand. This energy has the advantage at longer distances and the .308 doesn’t drop as far as the .223 past 500 yards. 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. Then you can make yourself a cheat sheet with distances and bullet drops that you can quickly reference. 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. Which essentially means you zero at 50 yards and your bullet will hit the same point of aim at 200 yards. 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. [ARCHIVED THREAD] - 308 impact at 50 yards with 100 yard zero. Gravity exerts more force on a heavier bullet and pulls it down faster. 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. 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. 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. dont have an opportunity to use private property as a range so im stuck to the local one which starts at 100 yards. For the rest of us just sight your AR in at 50 yards and leave it alone. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Dead on at 100 Yards. SMK bullets.Â, Owning a handgun doesn't make you armed any more than owning a guitar makes you a musician. dont have an opportunity to use private property as a range so im stuck to the local one which starts at 100 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. I zero every high power rifle I own for 200 yards and work off that zero. 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 168 grain SMK's 90% of the time through .308. Different shaped bullets will have different levels of drag and some will fly longer and straighter than others. Download these targets to assist in your pistol training. VIEW ALL VERSIONS. The graph shows that your .270 Win. 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. 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. The longer the bullet is in the air, the further down it will travel as well. The ballistics are flat for around 200 yards and at the 300-yard mark the slug has dropped 4 feet. It turns out that zeroing a .308 AR at 50 yards works just as well. AR15.COM is the worldâs largest firearm community and is a gathering place for firearm enthusiasts of all types. 200 yards zero you will be 1 inch high at 100.around 5 inch down at 300, Claret_Dabbler Well-Known Member. It works. 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. Finally you have to consider the initial velocity of the bullet. To test this, look at Tables Three and Four, where we again use Blatt's data for this same Federal Supreme round, this time converting the trajectory from a 100-yard zero to a 500-yard zero. At 1000 yards a .308 Winchester will have dropped around 400 inches (30 feet) where it has lost 55% of its velocity. Joined Aug 14, 2013 Messages 4,320 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. Scenario #2: With a different ammo --- Federal 150 Grain Nosler Partition, coming out of the muzzle at 2840 fps, then the following: I will start with the assumption that everyone gets the concept of gravity. How long your bullet stays in the air also depends on the shape. 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. Thumb image courtesy of Wikimedia Commons. The popular advice is to sight your .223 AR at 50 yards and you will be zeroed in at 200 yards as well. Although it may seem like a pointless exercise, having a properly zeroed scope will be advantageous when you are actually hunting. “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? Because of the arc of travel of the bullet you will hit dead center at 50 and 200 yards with a 50 yard zero. For those that have attended the courses now know that when it comes to your go-to 5.56 caliber carbine rifle that you would pick because it is best suited for all possible scenarios, the 36 yard zero seems to be the perfect fit. The .308 Winchester round shoots pretty flat out to 200 yards when it starts to drop. zeroed a new hunting rifle at 100 yards and documented what i need to dial at 200 yards. 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. 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. This chart shows the trajectory of the two common military 5.56 rounds. The shorter the barrel the less velocity you get. 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. 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. California: where Illegal Aliens and Pot are protected, but AR15's and Standard Cap Mags will get you arrested. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Jeff Cooper. 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. It will then double at 200 yards to ½ inch (2x ¼). Because these will be the first shots since the riflescope has been mounted, it’s best to … The situation is worse for a 62 grain .223 FMJ bullet since the higher weight also reduces muzzle velocity to around 2,700 FPS. If you zero that in at 50 yards, it will hit 4.2 inches low at 200 yards. Close enough that it won't matter for hunting. Using standard military FMJ 150 grain ammo from a 20 inch barrel rifle you only drop 4.3 inches at 200 yards. At 300 yards it will triple to ¾ inch (3x ¼ inch). The simplest thing to do is to use one of the many ballistic calculators available online. We offer pistol fundamental targets and zero targets for those running red dot optics on their pistols. If so I only want to bring it to the left to compensate for the inch off to the right. My notes have -0.56" at 50 yds with a 100 zero with 168 gr. That is actually not correct. When I shot my new .270 at about 50 yards, it was about 2 inches low and an inch to the right. 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. 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. Then 4.7" low at 300 yards. 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. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Jan 14, 2018 #10 R. Rich Coyle Well-Known Member. That being said it does not utilize the potential available for that gun which I have taken game to 300 yards with setup differently. It turns out that zeroing a .308 AR at 50 yards works just as well. When zeroed at 25 yards the round will also be zeroed at 300 yards. depends on how high over the bore your scope is. Start Close. A 12 gauge slug of one-ounce weight fired from a standard Federal cartridge will shoot over 300 yards. It is important to realize that with a.308 rifle, 200-300 yards is a good shooting distance. Using one of the many bullet drop calculators available on various ammunition manufacturer websites, we can measure different bullets and distances easily. Like it so far. At 1,000 yards, that translates to 10-inch or 10 MOA groups. At 300 yards the slug is still lethal and penetrates ¾ inch plywood. 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. 2,700 FPS seem like a pointless exercise, having a properly zeroed scope will be zeroed at 25 yards.223/5.56! Popular advice is to use private property as a range so im stuck to the.. Returns to zero at 100 yards and documented what i need to dial at 200.... Your AR in at 200 yards to ½ inch ( 3x ¼ inch ) rest of us just sight AR... Two common military 5.56 rounds at 100.around 5 inch down at 300, Well-Known. Towards the ground good shooting distance i shoot 168 grain SMK 's 90 % the... 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