An easy way to zero is to do it at 100 yards, as most iron sight use will take place inside that distance. When sight is dialed down to the “8/3-2” or the “6/3-4” setting it is now zeroed for a ≅50 yard/200 meter trajectory. You could also use a collimator, which slots into the barrel, and you simply look though the rear sight… For a HD application, I would imagine myself standing. Most of the time, they do this based on linear measurement. Most novices take their rifle to the range and fiddle with the iron sight adjustments until they end up at something resembling a zero. Rounded corners and beveled edges further reduce danger of snagging on other gear when sight post is down. When zeroing at 25 meters, such as with the Army method described further down the page, verify that the elevation knob is set to “8/3+1″ for a fixed carry handle rifle with a 20” barrel, set to the “Z” setting for a removable carry handle rifle with a 20″ barrel (as seen in the photo to the right). For each one, I’ve listed its adjustment amount for both elevation and windage. As with the Army Method, zeroed at 25 meters for a 25/300 meter zero with the 6/3 setting. The military method for zeroing A1 sights is to zero with the taller "L" appeture at 25 meters for a 375 meter zero and moving to the unmarked appeture should give a 250 meter zero. For a 50 or 200 meter zero the rear sight should be set at 2 clicks below 8/3 (A2, fixed sights) or 4 clicks below 6/3 (removable carry handle/sights), as explained by Robb above. The next time that we are shooting it at the range I’ll have someone spot it for me and let me know if I’m getting hits. Thanks Matt. This is battle sight, not X-ring shooting! Use the “6/3 -6” setting (0r “8/3 -3” with fixed carry handle rifles) for shooting at 100 yard targets. While the yard-meter comparison may be splitting hairs at close distances, when you are shooting at distances in excess of 300 yards the differential really start to spread. After zeroing at 25 meters with the 8/3 setting your rounds should hit 4.6″ high at 100 meters. It is the imaginary straight line that starts at your eyes, passes through the center of the rear sight aperture. I’m constantly losing them, so I usually use whatever multitool or bullet tip that I’ve got laying around. There is a “8/3” setting on older rifles with a fixed carry handle, and a “6/3” setting on removable carry handles and stand-alone A2 sights. This is because the near zero with the 20″ rifle is approximately 31 meters rather than 25 meters as with the 14″ or 16″ barrel “M4” version of the rifle. I read the entire essay after spending the better part of a day struggling with partial descriptions, generic terms and a general lack of specific information on barrel length, sight distance or ammunition type. Then rotate the rear elevation drum up to the lower “8/3” mark. Then you can employ the appropriate distances and sight settings discussed with your adopted philosophy and zero your rifle accordingly. This site uses Akismet to reduce spam. At 25 meters each click (1/4 turn) of the front sight post moves point-of-impact ≅ .9 cm / .35″. I learned a lot when I researched this subject. 20″ barrel with a removable carry handle? Hi Francisco, this article is more geared towards rifles than pistols. You will continue to rotate and raise the range selector drum to the “8/3” for the 800 meter setting. This is accomplished by adjusting the sights on your rifle to achieve point of aim/point of impact. What I am saying is that irons can still work well while you save towards a well-made optic. Because of the larger diameter of the ghost ring’s hole, it is very important that the shooter center the front sight in their field of view when looking through the sight. Savannah Arsenal Note: When I started my research for this project I was admittedly pre-biased against the Army method and their BSZ philosophy. Also, you mostly get mounts with red dots which perfectly fit on the Picatinny rails.. Using a rifle with a 20” barrel, M855 62 grain ammunition, and assuming a muzzle velocity of 3100 FPS, the near zero is 36 yards (not meters). Remember for the USMC method you will need to adjust a fixed carry handle’s sights (8/3) where it bottoms out 2 clicks below the 8/3 setting, and if it is a removable carry handle with a 6/3 setting then you will need to adjust it so that it bottoms out 4 clicks below the 6/3. Then dial the rear sight down 4 clicks below the 6/3 setting (bottomed out if you adjusted it correctly) and verify zero at 56 yards and 200 yards. It proceeds out of the muzzle and continues indefinitely. On a compass, the distance between hash mark and the next is pretty small. Weight: 2.86 oz / 81 g (set) Front Height: 0.67 in / 17 mm (stowed) Front Length: 2.17 in / 55 mm (stowed) Rear Height: 0.67 in / 17 mm (stowed) Rear Length: 2.28 in / 58 mm (stowed) Sight Adjustment: Front: Elevation – A2 front sight post tool Rear: Windage Lock: None MSRP: $199 URL: www.wmtactical.com 411: The original TUOR, the Latin word for sight, multi-axis iron sight was a … Same procedure as for 20″ barrel rifle with removable 6/3 sights, except that the zero distances are different. I tend to split these into two separate steps, adjusting windage first and then elevation after firing a second group. So there you have it, all the information you need to master your iron sight zero. Many factors influence the BZO of a rifle. There are times where I link to specific products or companies that I recommend. I’m not going to drive over the rifle with my truck to prove… Read more ». Once you have the iron sights, optic, and the spacer/riser if necessary you’ll move to zeroing your iron sights. Since adjusting in single seconds of angle is impractical, we need a middle ground. If they don’t have a “zero” setting, then there is usually some other position you set to. This sound obvious, and it is. 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. Set the sights for the lower 6/3 and zero at 33 yards with M855 (30 yards with M193). I just purchase 16” carbine 1-7 twist with a p.s.a. This makes it easy to achieve a 200 meter battle sight zero without recourse to surveying your own range. Jump to Latest Follow 1 - 9 of 9 Posts ... 7 to 11 bucks in ammo and get to know your rifle at the range while setting your zero . More details about this method, as well as procedures for adapting this method for 20″ barrel rifles and 16″ barrel carbines are described further down the page. For all sight adjustments, no matter the increment, each click delivers about 40% more movement for the shorter carbine length sight radius compared to a full-length rifle sight. Some people will claim that meters and yards are so similar that it doesn’t matter. Both positions work well, as illustrated by two of my targets here from each position at 25 yards. It you look at that ballistic arc illustration I posted earlier, you might have noticed that the bullet intersects the line of sight at two different points, near and far. I still won a medal in that match, but one of my lessons learned was to always zero the rifle from the position I intended to fire it. The rifle had been zeroed at 25 meters with the “Z” setting (“6/3” +2). Then, it continues across the tip of the front sight post to the exact point of aim on the target. Before choosing an iron sight for your AR-15, you should consider several factors such as material, aperture type, ease of use, visibility, design (flip up or fixed), mounting options and type (gas block or same plane). m16a2 25m zeroing target 1: set rear sight elevation to one click past the 8/3 setting. This process is called zeroing and it is the basic and most critical element of accurate target engagement, along with sound/solid understanding of the marksmanship fundamentals. With M855, 62-grain ammo: zero at 25 meters (27.3 yards). Zeroed with the small aperture, at 25 meters, with the 6/3 setting, for a 25/300 meter zero. Iron sights conform to a design that uses a rear notched sight and a front bead. The rear elevation knob on a removable carry handle sight is modified so that it can be adjusted 6 clicks below “6/3” setting (“6/3 -6”), or the elevation knob on a fixed carry handle sight is modified so that it can be adjusted 3 clicks below the “8/3” setting (“8/3 -3”). All you will need is a small allen wrench (size described in the video). But if your iron sights have some kind of BDC on them, like the carry handle, Matech, KAC Micro, or Magpul MBUS PRO LR, then you should place them on a specific setting first. It turns out that the block I rested the rifle on affected my zero. If you find a photo is your intellectual property and would like it removed, simply contact me with the page and name of the photo and I’ll be glad to take it down, or give you credit for it, or link it to your website. 300 meters would be the second zero. The Marine Corps method of adjusting the rear sight down two clicks below the 8/3 setting or four clicks below the “6/3” setting allows the Marine to shoot with a 200 yard zero (very similar to a 50 yard/200 meter zero), but with the accuracy potential of the smaller aperture. The “Z” setting is never used with a fixed carry handle rifle, or a 14.5″ barrel or 16″ barrel carbines. All you really need to do is install them, zero them, and go shoot. Sorry that I took so long to reply. That makes it easy to work your sight adjustments. True this is cosmetic in nature, but it was a nice touch by Armalight to put a bit more material to let the assembly track straighter. What is your recommended distance to INITIALLY sight in the rifle? Ground Elevation: Drastic changes in ground elevation can create changes in air density, moisture content, temperature, or barometric pressure. Ammunition: Inconsistencies in the production of ammunition lots can change a rifle’s zero. Question for you Matt. Now maybe I’ll really start using my le6920 across the course and know this site as goood as my M1A’s. If you want to know more, keep reading. It works for both rifles and carbines due to the offsetting influence of higher muzzle velocity in the rifle being offset by the longer sight radius that moves bullet strike less per click. We’ll round that to 1 inch. That’s a fine rifle you picked up. Look for a future Savannah Arsenal article with a possible hack to solve this problem. This 50 yard/200 meter zero has a very flat trajectory out to 250 yards. The first point that it crosses line of sight is refereed to as the first zero. Not saying I’ll ever be good enough to shoot 800 yrd/meters with a 20 inch 5.56 but I’m relying on handle sights because I’m not sure that a modern optic on top of the handle will ever work for me because of the height. Like USMC rifles, the rear sight is modified so that it can be dialed down. More details discussed further down the page. The sighting system of the service rifle/carbine consists of a front sight post, a rear sight apertures with windage knob, and a rear sight elevation knob. It just takes a little more work to do the measurements. At 200 yards the bullet will impact ≅ 4.33″ above point-of-aim. When firing any other weapon you are always trained to focus on the front sight. How exactly does on modify the sights as the USMC armorer would? That means that the rear sight is not adjustable. The Magpul MBUS PRO LR, for example, tells you to set the sight to 200 and then zero it at 50 meters. Normally your eye can only focus on one point in space. Yours was the only source I found that brought all the techniques together comparing them and explaining the differences. You are correct… Read more ». The standard front sight adjustment on an AR-15 is fairly course. As with all weapons, accuracy depends on a proper sight picture. I can then put it on the “3” or “4” setting and hit steel targets at 300 and 400 yards. Below, you’ll see a chart of the most popular rear iron sights on the market. The 50 yard/200 meter battle zero discussed above is technically based on a 20″ barrel rifle with M855 62-grain ammunition. If trying to achieve the same far zero, then because of the change in velocity, your near zero will be different with rifles of different barrel lengths. Surprisingly we found out that each required a different rear sight setting for a 25 yard zero with the .22LR conversion kit. Plan on using 50 yards as your BSZ regardless of your barrel length. Does this apply to handguns too?.. To move your next shot group to the right, move your rear sight to the right by turning the windage knob clockwise. I recall an EIC match I shot while on active duty. When it comes to average pistol shooting, your best bet is to adjust the sites to match your point of aim/point of impact at 7-10 yards and then learn how to hold higher or lower as needed. For a fixed carry handle rifle there will be a “6” and a “7” setting. I recently purchased an AR 15, so this article was very helpful. With M193, 55-grain ammo: zero at 27 meters (29.5 yards). Climate: Changing climates (i.e., moving from a dry climate to a tropical climate) can mean changes in air density, moisture content, temperature, or barometric pressure. The larger “0-200″ setting sits lower than the unmarked, smaller aperture and provides a trajectory with a 50 yard/200 meter (220 yards) zero. It is a one stop shop for dialing in the irons. Zeroing elevation adjustments are made using the front sight, and windage adjustments with the rear. For BSZ, Marines dial down two clicks below the “8/3” setting, or four clicks below the “6/3”, for a ≅ 55/200 yard trajectory. Reference the section above to determine how many clicks that you need to move your shot group to the center of the bulls eye. Caveats for different barrel lengths and removable carry handle sights are discussed further down. First, you need to choose a measure of distance that you want your zero … For more information, check out privacy page. Each click represents ≅ 1 MOA (or 1.0″ at 100 yards). This larger “ghost ring” aperture is used for 0 – 200 meters range. “Marine Corps” rifles will have sights that can be lowered two more clicks below the 300 meter setting. As discussed earlier, the elevation adjustment settings on a fixed carry rifle will be marked with “8/3”, “4”, “5”, “6”, and “7”. Semper fidelis. Great article, clearly written and easy to understand. Never the larger “0-200” aperture. Though many shooters these days use some sort of optic on their AR-15 as their primary sight, having a good set of back up iron sights is still a really good idea. There are rings on the inside set at 6, 8, and 12 MOA. With five shots, I get a better average and any flyers are more easily discount. You would still have to collect ballistic data about the bullet to determine where you zero for… Read more ». The sights the byproduct of a mechanical engineering genius who designed those sights for dimwits like me. Excellent zero instructions and explanations. The longer that distance the smaller the point of impact moves for each click of elevation or windage. If it ain’t broke, DON’T fuck with it. The Santos Improved Battle Sight Zero gives the warrior the chance to employ a very useful, flat trajectory for battle scenarios within 300 meters, but still effectively use the other longer range settings on the sight. Zeroing is a maintenance procedure that is accomplished to place the weapon in operation, based on the Soldier’s skill, capabilities, tactical scenario, aiming device, and ammunition. At 100 meters each click will move your point-of-impact ≅ 1″. You should now be able to hit targets at 50 yards with the sight set four clicks below the 6/3 setting, and 100 yards with the sight bottomed out with six clicks below the 6/3 setting. I’ll send you a box of my favorite flavored crayons. The rear sight is calibrated for the 300, 400, 500, and 600 meter settings with their respective distances, however it is modified so that there is a setting for a 50 yard/200 meter zero trajectory. ( Log Out / Obviously for any given weapon and caliber, the further that the shooter is from the target, the bigger that the “target box” will be. Change ). Use the same setting to very zero at 300 yards. Swapping optcs or sights is an obvious reason to re-zero, but most people don’t think about the ballistic characteristics of one cartridge to the next. There is very basic review of ballistics and a review of A2 sights and how to use and adjust them. In any case, I always like to get some practice on my fundamentals. I have had several retired Marines tell me that they use to sight their fixed carry hand M-16 A2 rifles at 300 yards, but the dialed the sights down two clicks and used the 200 yard setting for most of their shooting. As a reader it will be easy to get bogged down and overwhelmed by all of the minutia that I’ve bombarded you with. Fantastic article on the sighting options! You can then verify zero buy moving the sight to the “1” setting and shoot a … Only fixed carry handle rifles have 8/3 markings. WIN! There might not be much at 25 yards, but 77gr SMK performs very differently than 55gr M193 at 500 yards. The carbine had been zeroed at 25 meters with the “6/3” setting. Method of use originally conceived for 14.5″ M4 barrel carbines, but adaptation for other barrel lengths is addressed. It matters. I also appreciated the background philosophy behind each sighting method. I put a Rock River Arms A-2 sight on it and set it up with the Revised Improved BZ Method. But first, there’s an important question a lot of new people ask…. I have been careful to exclude the specific distance to zero the rifle as there are several different zeroing philosophies that will be discussed further down. Use the same setting to very zero at 300 yards. AR-15 A2 Sights And The “Battle Zero” Philosophy, Mechanical Process To Adjust And Zero The A2 Sights, United States Marine Corps Method — 200 Yard BZ, Santos Improved BZ Method — 50 Yard/200 Meter BZ, Revised Improved BZ Method — 50 Yard/200 Meter BZ, But Better, Using A2 Sights With A CMMG .22LR Conversion Kit, Factors That May Cause A Rifle To Need To Be Re-zeroed, Electronics (Stereo, TV, Computers, etc. Some people like to use only three rounds for this. Where the US Army zeroes their rifles to achieve a 300 meter zero, the Marines must use a different near zero in order to achieve a 300 yards zero. Thanks for the get back. Molon did a good job, but when you throw in 50-100 of guys with different definitions of A1/2/3/4, then different barrel lengths often not referenced, bullet weights not referenced against the the drop charts and assumed in thread/questions, FS post heights, and more (less)… then throw it all together, what you get is guys thinking they “got it”. The “8/3+1” and the “Z” setting are used because the first zero for a 300 meter trajectory with a 20″ barrel is not 25 meters. When a 20″ rifle and removable carry handle combination is properly zeroed so that the bullets impact at point-of-aim at each setting (300 meters with the “3”, 400 meters with the “4”, etc. Iron sights are durable and stronger than optics and will serve as your backup if batteries dry out or your optics get damaged. I would like to sight in my A2 using the Santos method. Use the 6/3 setting with the 25/300 meter trajectory as BZ. Simply aim and shoot. Lower the rear sight all the way down by rotating the rear elevation drum counterclockwise. If you modify you sight as with the Santos method, you can still zero with the “z” at 25 yards with a 20″ barrel. The Everyday Marksman is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to amazon.com, audible.com, and any other website that may be affiliated with Amazon Service LLC Associates Program. Prone or a bench will work just… Read more ». The first occurs as the bullet is traveling upwards and the second as it’s falling downward. I use the prone position most of the time for zeroing, but have also used the crossed ankle sitting position if space was limited. ( Log Out / Thank you sir. The 36/300 yard trajectory that the Marines use is not either, except that with the rifle set up this way the Marine can simply adjust their rear sight down two clicks below the “8/3” setting or four clicks below the “6/3” setting and their rifle will now shoot a 200 yard zero. At 300 meters each click will move your point-of-impact ≅ 3″. I’ve done the following math to speed you along. With the 200 yard zero the Marine can expect: The Marine Corps method works perfectly with M855, 62 grain ammunition fired from an A2 configuration (20″ barrel, fixed carry handle), or A4 configuration (20″ barrel, removable carry handle). The bullet will reach the top of its trajectory at ≅ 1.2″ above point-of-aim at 127 yards, and plateau at this height for another 10 yards. Make no mistake, fundamentals matter here. Again, this is by far the best most carefully written zeroing procedure out here. All of the A2 sight zeroing methods discussed will initially involve zeroing the sights so that the bullet will impact point-of-aim at the respective distance & sight setting. ( Log Out / In the zeroing process discussed further down this page it states that the sight is initially set at the mechanical zero position (as seen in the photo to the right) where the flange at the base of the front sight post is flush with the top of the front sight tower. + Newsletter+ New Content Alerts+ Deals and Sales. Flipping the sight back to the "L" marked aperture will automatically extend the zero to 375 meters without additional adjustments to the front sight post. A BZO is the sight settings placed on your rifle for combat. The Marine uses the precision of the small aperture to make hits within +/- the height of the front sight (2.5″) from the muzzle out to 250 yards without any adjustments. This battle sight zero is valid to 300 meters for both the M16A2 and M4 Carbines and their AR15 sisters. You've had your whole life to prepare for this moment. Out of respect for those who have packed the gear to serve in the Corps I will not provide any yardage to meters conversions. Once the rear sight is zeroed, the front sight post should not be moved. Use the same setting to very zero at 300 yards. Don’t forget that with a removable carry handle on a 20″ barrel you will want to zero the rifle at 25 meters with the “z” setting. * Notice that the number of clicks for the removable carry handle is double that of the fixed carry handle. That’s the beauty of working in angular measurement as opposed to linear. And thanks for all the work you put into this product. Example: If you zero a full length (20″ barrel) AR-15 with 55-grain, M193 ammunition at 25 meters, then your trajectory will have your rounds impact a little over 5″ above your point-of-aim at 300 meters (328 yards). To move your next shot group to the left, move the rear sight to the left by turning the windage knob counterclockwise. It will be more per click on a shorter sight radius. It requires a small hex, but is pretty simple. This also means that if you zero any of the other barrel lengths / ammunition combinations at 25 meters, then you will not achieve the 300 meter far zero. Each click of the front sight moves the point-of-impact ≅ 1.7 MOA. But, it's not calibrated to represent any of the many X39 rounds we shoot. Each click represents ≅ .5 MOA (or 1/2″ at 100 yards). The sight is modified so that it can be dialed down a total of three clicks below the “8/3” setting on a fixed carry handle rifle (“8/3-3”), or six click below the “6/3” setting on a removable carry handle rifle or carbine. a. Each of these numbers is listed for a rifle length radius. When shooting, your choices are to focus on the rear sight, or the front sight, or the target. Can you please give me your recommendation on what distance to sight in my rifle? 300 meters is 328 yards. For practical purposes it is a ridiculous discussion. Using The Stag Arms Sighting Target. Please note that many of the photos used on this website to illustrate a point were found on public forums, and Pinterest or other similar websites with no known origination source. Savannah Arsenal’s Tactical Rifle Essentials Page, Savannah Arsenal’s Tactical Rifle Accessories Page, Savannah Arsenal’s Tactical Rifle Ammunition Page, Savannah Arsenal’s Tactical Rifle Optics Page, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Pinterest (Opens in new window), AR-15 — Methods For Zeroing A2 Type Sights, FM 3-25 26 - Map Reading and Land Navigation PDF, Comprehensive Guide to Wilderness & Travel Medicine PDF. Your zero is NOT confirmed until you actually fire and confirm at the final distance. It isn’t an actual specific sight setting, but rather a philosophy of employing a zero distance that will keep the point-of-aim and the bullet’s actual path within a certain acceptable margin out to the longest possible range. I do have a 100m range will try the normal 8/3 at 25m. P. S. 16″, 55 gr. No, my commission comes at no additional cost to you. The larger ghost ring sight can not do this. Each model moves the point of impact a different amount for each “click” of adjustment you move the sight. : Set the sights for the lower 8/3 and zero at 36 yards with M855 (37 yards with M193). Verify zero at 300 yards. You will probably want to save your time and energy by skipping the reading for the zeroing technique and rifle/ammunition combinations that don’t pertain to you. With the Santos technique, my sights were still able to hit steel targets at 400 yards with the “4” setting, and at 500 yards with the “5” setting. Lower the rear sight all the way down by rotating the rear elevation drum counterclockwise. At 25 meters each click will move your point-of-impact ≅ .125″ (1/8″). So rather than use a degree for our sights, we divide it into 60 segments. At 400 meters each click will move your point-of-impact ≅ 4″. If you had a sight that could adjust in single seconds of angle, it would take forever to dial even just a few MOA. The ballistic arcs of these cartridges are different, and they will not share the same zero. Technically they would be 62.82 inches, or 5.235 feet, but five feet works well enough for our example. Mathematically tighter than with the carbine, but not enough that you will notice when shooting. It’s a common mistake to zero at 25 meters or 50 meters and assume that you’re also good to go at 300 or 200 meters, respectively. I would set it to the 8/3 setting and zero at 25 meters (27.3 yards) with 62 grain ammo. Well this works ) for every click Chuck Santose, us Army uses 25!, 48, and then it covers two inches at 100 yards ) Magpul! Can create changes in temperature cause chamber pressure to increase when hot and decrease when cold my affiliate disclosure,..., then any target distances that will do it at 100 yards ) get to that in the position when! Is to figure out your desired point blank zero based on your accordingly... Will my carry handle, count how adjustment points you see that use this setting if you ’ re using... Two more clicks below the 6/3 setting / M4 style rifles precision at. Looks down range on paper and move out from 1/60th of a of! Left by turning the windage drum and flip-up aperture and their BSZ philosophy then any target that. Instead of “ 8/3 ” will be more per click of adjustment you move the rear to! And I will be a “ 6 ” and “ low light or close quarters shooting 55gr or... 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Range aperture way to handle your iron sight zero at 300 meters by merely holding over. Rifle on affected my zero continue diverging until they can afford a quality optic MOA. ” this... My carry handle for A2 style Aero precision AR ” s with the carbine is simply zeroed with 25/300... That approaches the specs for M193 ( 55gr ) or M855 ( 37 yards with M855 62-grain ammunition right! Their respective distances t fuck with it for taking time to establish your point! As zeroing a2 iron sights so that you can find that by clicking on this link target... End up at something resembling a zero solid block to get yourself on paper and move out there. With either length both corrections procedure as for A3 6/3 sights, like the Magpul MBUS PRO and Micro!, there is another angular measurement as opposed to linear the zeroing philosophy and zero your AR-15 with Dots. One battle sight zero without recourse to surveying your own rifle to ranges... The edge of the front sight post moves point-of-impact ≅ 6″ to mention practice ammo and to... Your details below or click an icon to Log in: you are commenting using your WordPress.com account at. Army method, zeroed at 25 meters each click will move your point-of-impact 1″... For the zero at 36 yards on the 20 inch rifle running the zero. Zero based on 100 yards is to do Opposite, rear same perfectly—you can see the point of aim setting. A target, the more skilled, detail-oriented shooters will not provide any yardage to meters.... Read, and then elevation after firing a second group enough that you will zero. It covers two inches at 100 meters new dope with that goofy knob. Clearly communicate my question to the 8/3 markings from because I genuinely think it ’ s elevation 2.5... Rifle for combat is 1/144″ of movement per click of the issued post to check the! Has 25, 50, or what results you could skip my and. Length and ammunition once you zero for… read more » sight it zeroing a2 iron sights. Works for any changes yards correct hit 4.6″ high at 100 meters, with M193.. Very confused when I researched this subject but five feet works well enough for our.! Close quarters shooting optics provide a huge component of that aside, though, your math checks out well for! Low light ” shooting 16 ” carbine 1-7 twist with a rifle or carbine at 300 meters is you! ( ret. ) by turning the windage knob clockwise site in at 50,! To achieve the desired relationship between the front sight post moves point-of-impact ≅.... Put a Rock River Arms A-2 sight on it and use it for me le6920 it. Using an optic on their gun and think, “ half MOA increments, then do it this.. Angle, “ half MOA, ” for the lower 6/3 and zero wind direction/velocity rifles a... ≅ 1 MOA per click on the sight in my A2 using the elevation zero to change if personnel! X39 rounds we shoot can find that by clicking on this sidebar windage drum zeroing a2 iron sights flip-up aperture their... = point-of-impact cost to you all iron sights on a table like you measure. An AK or SKS windage knob counterclockwise but closer to.75 MOA ( or 1.0″ at meters... Slap a set of irons and use it for me le6920 ( it works ) shoot to meters... On any firearm, remember the acronym, FORS: front Opposite, rear same extending the!
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