One of the many mottos used by Army snipers is “Suffer Patiently, Patiently Suffer.”. Next, take this figure and divide by 150, which is simply a math constant. What sort of math and or formulas do snipers use? This calls for a coordinated team effort. At 700 and 800 Yards, Divide by 13 (ie., a .50 caliber bullet is 0.50 inches in diameter). Calculate the range to the target. At distances of 1500 meters or more you have to take spin drift into consideration (Coriolis Effect) that is the spin of the earth having effect on where your target is at when the round reaches their distance. This only applies to .30-caliber rounds, such as the .308 Winchester and .30-06 Springfield. What sort of math and or formulas do snipers use? The basic rule-of-thumb is, add or subtract one MOA for every 5000 feet of elevation change. Observe bullet impact. Now, Take the object's size IN INCHES and divide by the constant 39.4 and then multiply the result by 1000 and then divide that by the object size IN MILS. Frank's graphic formula is simple and easy to remember. 3 x 10 = 30 ----- = 2 Minutes of Angle 15 So, if the scope increments were in terms of 1/8 we’d multiply the 3 MOA by 8. Mathematical Formula for Market Predictions. I was taught in the mil based formulas that rounding up 27.778 to 27.8 makes the math slightly easier and the resulting range difference has no practical impact. Measured in your mil reticle, the tire is 1.5 mils wide. You get the same result and it’s way easier. hide. Example: You see a fencepost that you know is two yards high; measuring it in your mil-dot reticle you see it is 4 mils high. Known as the Greenhill Formula, here's how to calculate the most compatible rifling rate-of-twist for a given projectile. Make necessary sight changes. ó¸!†ïŒvÛ×(‹è×pxçh[I{\²Óˆ! Íf¨Àؐ7ÒÛSZÙ¶ö¤±ð'¡LüHØp¶ä”¶Sø|qŒâ¾àm‚!¢{–-–¾[¹‰csKO½JQ…>™ö¼ ]I. A sniper team must be able to move and survive in a combat environment. Divide the circumference by 360 degrees, and you have 62.8 inches for one degree of arc. This site is only for demonstration purposes. YfÅW›„$“‹3Œ&2eE:vF6'>?±ÌêrèÙWP±˜Œ´æ&¶ž¾‹­DK†]?•=ªíö׉V3{îcÆ!÷7o× ³¥´Álu[ýÊË-óPI‰ÀÁ©Æˆ/}®T!ëI:ÎÔ2 )g¨€Æ¾¯¸3áqÒäCÇ+ßù(‘Dh^ùŽ-ùÜñ9r,ÇK¡oABÄÞÅw.u+êvçKÿ‹¬Ò쉰î¬ðIe>¤‚Úç) ¢“'X>H¡@@r3MþyŸvì Ô֙)ûä#Ž9,¥pìÃï8×}l@%ã(mêÕ¸¹¹Š *)žF8Ò %£$º9_?œájF"2‘RñMŒç The first technique is especially useful because it enables you to base your calculation on an object that is measured in inches rather than fractions of a yard. So all you need … When you consult an ammo manufacturer's rifle ballistic tables, you're actually looking at the velocity when fired through a 24-inch barrel. And finally, take that result and divide again by the diameter caliber and you'll have the rate-of-twist in inches. (pi) equals ~ 3.14 and r is the circle's radius (100 yards, or 3600 inches). Saved by Microsoft Bing. How to calculate? Range (hundreds of yards) x Windspeed (MPH), Wind Velocity (MPH) x Distance (Hundreds of Yards), Degrees +/- 60 Degree Standard x Distance (Hundreds of Yards), Extended Ballisctics: The .338 Lapua Magnum 250-Grain BTHP Match Round, Worksheet for Calculating 0.1 Mil Target Knob Settings (pdf), Getting the Most from your Laser Rangefinders (pdf), Building And Using A Tripod Rifle Support, *By the time you reach 1000 yards, an actual Minute of Angle equals 10.47 inches, To convert centimeters to inches, multiply the inches by 2.54, To convert inches to centimeters, multiply the inches by 0.3937, To convert yards to meters, multiply the yards by 0.9144, 1 Meter equals 1.0936 Yards or 39.37 Inches, To convert meters to yards, multiply the meters by 1.0936. Take the 1.35 length and divide by the .30 diameter, which equals 4.5. We want to find the value of “x” in Fig.5. This manual covers all aspects of being a sniper in ArmA 2: OA. Learn vocabulary, terms, and more with flashcards, games, and other study tools. We now use an Excel Spreadsheet solver and a guess and check method to determine the value of , … Download Maths formulas 12th class pdf apk 1.2 for Android. (The explanation is complex and worthy of a future column, but for now, just trust me.) If it's a full-value (90 degree) crosswind, click-in the two Minutes of Angle and aim dead-on; if the wind is oblique, proportionally reduce your clicks. Appearance of objects 4. So, if the scope increments were in terms of 1/8 we’d multiply the 3 MOA by 8. Once the basics are learned, calculating distances can be quick and painless using Mil … Moreover, this document offers greater insight for those who want to understand the role and way a sniper thinks and operates – how they provide a unique skill set to benefit the team. Trajectory. BTHP) to just one click -- one tiny 1/4-Minute of Angle click! The armed forces, though, will teach you how to do without a ballistic computer, just so in case shit hits the fan you aren't totally useless. When the Army decided to incorporate a range estimation tool into it sniper optics it chose this … All images are copyrighted to their respective owners. Recently my old friend Steve Langford of Millett Sights and I discussed the many formulas, measurements, math shortcuts and rules-of-thumb that are of value to precision shooters. This is another elevation adjustment, dictated by how much temperature variation can change the trajectory of your bullet. Shri. I have literally spent months crafting this 3-part series of articles specifically with the math-averse shooter in mind. Simple math. Make necessary sight changes. Exit Pupil and Lowlight Observation At dusk and at night, the same as your scope's eye relief — at dusk and at night, your eye's pupil dilates, or widens, to 6 or 7 millimeters, so you can see better. Many shooters have an uncomfortable relationship with math and aren’t impressed with fancy formulas. There are several methods to determine the amount of compensation, but the quickest involves these simple Rules of Thumb: Another Rule-of-Thumb, suggested to me by Sergeant Neal Terry, a longtime sniper instructor and police SWAT sniper, is to draw an invisible vertical line through the up or down target, and where this line intersects the earth's surface, range it! Snipers Hide Sniper Training Remington 700 Math Formulas Deep Words Study Tips Survival Bullet Journal Pdf. building pyramid. Uploaded by. Retired Navy SEAL Master Chief Jim Kauber, with whom I instructed at Gunsite Training Center, developed this formula for determining sight changes at various distances. runner, thanks for the theory behind the formulas. Thus, multiple its 2-yard height by1000, which equals 2000. None. Say you have fixed-power 7x binoculars with 35 mm objective lenses — thus 35 mm divided by 7 equals an exit pupil of 5, meaning the cone of light reaching your eyes will be 5 millimeters. Today's Very Low Drag bullets are disproportionately longer than Whitworth recommended, a reflection, I think, of our higher velocities leading us ever farther from round balls, and further from rules-of-thumb of past ages. ... Save Save Sniper Formulas For Later. Here's an old USMC formula for estimating windage compensation, in Minutes of Angle. Divide 150 (the constant) by that 4.5 which equals 33.33 Now take that and multiply by the caliber diameter, thus, 33.33 multiplied by .30 caliber equals 9.999 or a 1-in-ten inch rate of rifling twist. So in terms of 1/4, it’d look like this in your head: 3 * 4 → 12 clicks. Here's an example: Your .30 caliber, 200-grain bullet measures 1.35 calibers (or inches) in length. Here's another way TO FIND A DISTANCE IN YARDS: At the target, identify an object of known size IN YARDS and then measure it in mils. The temperature of the area will cuase a bullet drag will have the most effect cuase it will change the trajectory of the bullet. Try this example: You see an old tire near your target, and know the tire is 34 inches wide. Here are ways to find the third factor when any two factors are present: To keep all these variations straight, Gunsite precision rifle graduate Frank Zaluga devised his own formula graphic, which he forwarded to me. For cartridges generating a muzzle velocity of 2000 - 2500 fps, each inch a barrel is longer or shorter than 24 inches changes velocity 10 fps; For cartridges generating 2500 - 3000 fps, one inch will vary velocity 20 fps; High velocity cartridges, generating 3000 - 3500 fps, will change muzzle velocity 30 fps per inch of barrel. Calculating Elevation and Windage Changes. Mathpix Snip digitizes handwritten or printed text, and copies outputs to the clipboard that can be pasted into LaTeX editors like Overleaf, Markdown editors like Typora, Microsoft Word, and more. Originally used by submarine periscopes, it has been scaled and re-implemented for military and recreational rifle marksmen to determine distance objects or to allow for bullet drop compensation. A common technique is to range estimate based on the width and then range estimate based on the height and to shoot the average. 100 meter unit of measure 3. In mathematics, we say that quantity x grows exponentially with respect to time t if x satisfies the following differential equation:, where k is a constant and dx/dt is either a derivative, when t is continuous, or the change in x in a given time interval, when t is discrete. The USMC was the first U.S. military service to in corporate a mil dot reticle in sniper optics by having it installed by J. Unertl for use on the M40 sniper weapons system. From there, they get selected and sent to a sniper school. To accomplish this, the Sniper ‘crunches’ past draw results in real time, and translates the resulting data into a future trend. reference, the United States Army Sniper School expects a +/-5% accuracy with a rifle scope. Concern about altitude change usually involves travel - say you regularly fire your rifle near St. Louis at an altitude of 450 feet, then you go to Colorado to hunt elk at 10,000 feet. But what about changes in barometric pressure which can vary day-by-day, even hourly, when high- or low-pressure fronts pass through? Now s method gives: (8) where is any of the functions or . Ballistics calculations and formulas for small arms. Mil Dot scopes are optics which allow users to easily calculate distances to a target without fancy equipment. In a previous column I dealt with both mils and MOAs to a great extent, explaining how to calculate measurements and use them in various ways. This calls for a coordinated team effort. Explore. Simple math. M = Minutes of Angle It won't work!]. In use since the days of the excellent 1903 Springfield rifle, this formula is only employed for targets 500 yards or closer, after which the math constant changes: Frank dubbed it, "The Doctor is in. The longer the range the more it comes into play. For example: 17" target that reads .9 mils. So, you divide the 34 inches by the constant of 39.4 to yield 0.86. many more formulas about gravity, velocity, drag, angle aim and fire, temperature, humidity. this formula is only employed for targets 500 yards or closer, after which the math constant changes: Range (hundreds of yards) x Windspeed (MPH) ----- = MOA Windage 15 (a math constant) For example, your target is 300 yards away, and there's a 10 MPH crosswind. Start studying Marksmanship and formulas for shooting scout sniper. Image result for sniper log book pdf. A little 55-grain .223 bullet has over 150% as much wind drift as a big 180-grain .30-06 bullet, however, and it was because of wind drift, not holdover, that I specifically excluded .22 caliber rifles from my definition of "deer rifle." In theory, a headwind slightly increases drag on your bullet and thereby reduces its velocity, while a tailwind has the opposite effect. We've worn out several pads of paper comparing Neal's math to other kinds of up/down calculations - it works and it's the essence of simplicity! Posted by 7 years ago. He and I jotted down quite a collection which I'm passing on to you: These are worth knowing so you can convert units of measurement -- especially when using a meters-based map -- or employing a scope that uses metric adjustments. Disregard the angle, ignore the direct distance from muzzle-to-target, concentrate only on adjusting elevation for the distance to where that vertical line touches the earth. So here we're only contrasting mils and MOAs at 100-yard increments all the way to 1000 yards to give you a sense of how these compare. In use since the days of the excellent 1903 Springfield rifle, this formula is only employed for targets 500 yards or closer, after which the math constant changes: For example, your target is 300 yards away, and there's a 10 MPH crosswind. 10 comments. I don't think there's enough variance to change your elevation except in extreme weather changes; yet, W.W. Greener, in his 1901 classic, Sharpshooting for Sport and War, suggested, "One inch of barometric pressure is equal to 15 degrees Fahrenheit change in temperature. In mathematics, we say that quantity x grows exponentially with respect to time t if x satisfies the following differential equation:, where k is a constant and dx/dt is either a derivative, when t is continuous, or the change in x in a given time interval, when t is discrete. The way to do this is to use the tangent function of trigonometry. Together, the sniper and observer— Determine the effects of weather on ballistics. The sniper team’s mission is to deliver precision fire. Archived. After determining your round's muzzle velocity for your barrel length, consult a good ballistic software program to chart how it changes the bullet's trajectory. Example: you know an object at the target's distance is 12 inches wide; you measure the object's width in your scope's mil scale and find it is 2 mils wide — therefore, 12 x 27.8 divided by 2 equals 166.8 meaning the target is 166.8 yards away. For you math majors out there, another way t o find the answer is to look at the bottom of Fig.4 as a triangle (enlarged in Fig.5 below) . A century ago, British firearms authority W.W. Greener developed a formula based upon a "standard" temperature of 60 degrees Fahrenheit, which is very close to today's 59-degree F. ballistic table standard: When the temperature is less than 60 degrees, add the result to your actual target distance; when it's above 60 degrees, subtract this distance from the actual distance. Humidity and Temperature Humidity may have some small effect on the bullet causing it to weigh more. Let's say you've fired a shot at 436 yards and you observe it strike 15 inches low. I’ve witnessed him make first-round hits with a .338 Lapua Magnum at 1250 Here are the three rules of thumb, as disseminated by Remington Arms Company: While these velocity differences seem minimal - at 100 yards there's almost no noticeable change in trajectory - the effect becomes significant at long range. Addeddate 2015-01-18 05:01:51 Identifier pdfy-ITwQpfAWncRTv7rs Identifier-ark ark:/13960/t06x2jf81 Ocr ABBYY FineReader 9.0 Ppi 333 Scanner Internet Archive Python library 0.6.3 The sniper team’s mission is to deliver precision fire. Here are a variety of ways to calculate distances using a mil-dot reticle. save. The temperature of the area will cuase a bullet drag will have the most effect cuase it will change the trajectory of the bullet. At 1000 Yards, Divide by 11. Since air is thinner at higher altitudes, there's less drag on a bullet and therefore, in relative terms, a bullet flies faster with a flatter trajectory. This thread is archived. [That "27.8" is simply a constant — don't get wrapped up about why it's 27.8 but DO NOT use this constant for computing a distance using meters! This may seem like splitting hairs, but headwind/tailwind compensation increases with distance because the bullet slows and its trajectory becomes a plunging arc. Sniper Operations Manual. Ballistics calculations and formulas for small arms. Bracketing 5. Today. TO FIND A DISTANCE IN YARDS: An object of known size IN INCHES x 27.8 divided by the object's size IN MILS equals its distance IN YARDS. Addeddate 2015-01-18 05:01:51 Identifier pdfy-ITwQpfAWncRTv7rs Identifier-ark ark:/13960/t06x2jf81 Ocr ABBYY FineReader 9.0 Ppi 333 Scanner Internet Archive Python library 0.6.3 I would like to know how objects such as bullets travel through time and space. Multiply that by 1000 to get 860, and divide that by 1.5. This coursebook has been revised and updated to ensure that it meets the requirements for the Pure Mathematics 2 and 3 (P2 and P3) units of Cambridge AS and A Level Mathematics (9709). 6. Calculate a trajectory from bullet, velocity, firearm and atmospheric parameters. Sticking with our example of wanting to hit that 800-yard target and accounting for 163.53 inches of bullet drop, let’s do the long walk through the math to calculate how many MOA that is. Calculate the range to the target. I’ve witnessed him make first-round hits with a .338 Lapua Magnum at 1250 Calculate a trajectory from bullet, velocity, firearm and atmospheric parameters. Not as great as 7 x 50 mm, is better and for riflescopes with variable magnification, this tells you what the ideal magnification will be for shooting in lowlight. So in terms of 1/4, it’d look like this in your head: 3 * 4 → 12 clicks. 100% (1) 100% found this document useful (1 vote) 894 views 6 pages. Uploaded by. the formulas) really were developed. 71% Upvoted. BTHP Match round will impact six inches lower at 500 yards when fired from a 20-inch barrel, then when fired from a 24-inch barrel. Laser-range finder 7. There are other techniques and guidelines. At 900 yards, that same, mild, 10 MPH headwind or tailwind, would require a seven click correction to place our .308 bullet on center-target. U.S. Army tests measured the following effects of changing temperatures on .308 ammunition. Observe bullet impact. Math Tip: Instead of dividing, flip the fraction and multiply. A-level Pure Mathematics 1 Pdf Cambridge AS and A Level Mathematics is a revised series to ensure full syllabus coverage. The basic formula looks … First, determine the LENGTH of your bullet in "calibers" which is a measurement in hundredths-of-an-inch, the same way we measure bullet diameters. Divide the objective (forward) lens diameter in millimeters by the optical device's magnification. Ideally, your riflescope or binoculars should generate a cone of light of this measurement to allow the best lowlight viewing. The degree to which your barrel is shorter or longer will respectively decrease or increase muzzle velocity, and thus require elevation changes, a significant factor since some rifles have 26-inch and even 20-inch barrels. B. ALLISTIC . It would look like this: 3 * 8 → 24 Clicks. The Minutes-of-Angle is the standard unit-of-measurement for elevation and windage on most riflescopes in America, while the mil (or milradian) is the unit-of-measurement found in mil-dot reticles. Despite the high power of a rifle shot, it is still affected by gravity . If math is not your friend, we understand. At 900 Yards, Divide by 12 The sniper's skill acts as a force multiplier, where the mission is two-fold: (1) to eliminate high-value tactical targets on the battlefield, and (2) act as observer gathering intelligence. go and try to find a Sniper's Data Card and/or Observer Card "DA Form 5785-R" with this card u can calculate / … And recall that at such extreme range, the bullet is plunging so sharply that even a small elevation error can cause a complete miss. Had it been a headwind, we would have added that 7.5 yards to the actual distance, and fired as if the target were 307.5 yards away. G. OING . The USMC was the first U.S. military service to in corporate a mil dot reticle in sniper optics by having it installed by J. Unertl for use on the M40 sniper weapons system. Together, the sniper and observer— Determine the effects of weather on ballistics. Mil Relation Formula: The core of rifle scope range estimation is a math problem referred to as the "Mil Relation Formula". Now divide the length in calibers/hundredths by its diameter caliber. ,tË°½)û¢™eæIðö9ë¢À.¬¬_= @߯‡Â÷(G›D1œpHºVfê!ºÊ9ES†|‰\1®=)WÈĈ‡Är¤ÿ:F™æ×Óþ!®„AH8i>°‘jU—)ñZ––ž)—1Ž=½&£dƁ^÷@c n=3¼ž—ýy~à¬FiáTàMŽ†³µËގ-"\"¡8¢g¤cºdQØðÌaÎh{ÚüEÇzÎÜ=^a>ñ§%½n"L¥å™”2HQ/0l$ùSÀ,Ewåç1°ï+ÅìÅèihRŽëYdÔ_¸$Ùuág³é\¯}F Distance and Elevation Inclination Angle Formula: For a target 45 degrees up or down, multiply the actual distance by 0.7, set your scope elevation for this distance and aim dead-on; When the target's 30 degrees up or down, multiply its range by 0.9, set your scope for this distance and aim dead-on; If the target angle is less than 30 degrees, aim dead-on. Here's the Math (only if you're interested) Briefly, if you want to know how I got here, remember the formula for the circumference of a circle is 2?r, where ? Now, multiply its estimated size IN YARDS by 1000 then divide that by the object's measured size in mils. When your target is uphill or downhill, your round will impact high if you aim dead-on. And if you're trying to determine how many MOAs to crank your scope when you want to raise the bullet impact ten inches at 200 yards: put a fingertip on the "M" (for MOA), and you see you must divide the inches by the distance. Math Tip: Instead of dividing, flip the fraction and multiply. And since that post measured 4 mils in your reticle, you divide the 2000 by 4, so you know it is 500 yards away. Standard ballistic tables assume a sea-level altitude, so already there may be a variance from these tables and the altitude at which you zero your rifle. D = Distance in hundreds of yards. 2. When observer calculate it sniper adjust the scope because wind effect .. etc. Range card 6. Since it's a tailwind, we subtract these 7.5 yards from the 300, and set our sight as if the target is 292.5 yards away - which translates (for a .308 Winchester firing 168-gr. This book is essentially a detailed Sniper Training manual for use by Military/LE Snipers, Competition shooters, Long Range Hunters, and other enthusiasts. It would look like this: 3 * 8 → 24 Clicks. What's the difference? 1. Sniper Formulas - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Because powder inside your cartridge burns at a higher rate when it's warm, and slower when it's cold, your rounds will strike low in cold weather and high in hot temperatures. The following best applies to .308 and .30 caliber rounds: When the temperature changes 20 degrees from your zero temp, apply 1 MOA at 300 yards; When the temperature changes 15 degrees from your zero temp, apply 1 MOA at 600 Yards; When the temperature changes 10 degrees from your zero temp, apply 1 MOA at 1000 Yards. Altitude Effects. And to find a distance IN METERS: Place your mil-dot reticle on an object whose size is known size in inches. Here's an example: The temperature is 90 degrees F. (30 degrees hotter than Greener's 60- degree F. standard), and your target is 500 yards away. Log in. At the same time, each digit within the predicted clusters gets a unique ‘mark’ to reveal a possible match with the detected trend. Math comes into play with long range shooting. Here's an old USMC formula for estimating windage compensation, in Minutes of Angle. More information... People also love these ideas Pinterest. Let's see how exact this small compensation can be by calculating the adjustment for a 10 MPH tailwind, when our target is at 300 yards. Humidity and Temperature Humidity may have some small effect on the bullet causing it to weigh more. Sniper teams can use indicators like smoke or blowing leaves to help them read the wind. Sticking with our example of wanting to hit that 800-yard target and accounting for 163.53 inches of bullet drop, let’s do the long walk through the math to calculate how many MOA that is. Treat a rise in barometer as a rise of the thermometer in the above proportion.". Therefore, the answer is 10 inches. Thus, a headwind requires that you slightly raise your scope reticle, and a tailwind dictates that you slightly lower it. share. Therefore, your target is 573 meters away. This formula works well except when a target is farther than 500 yards — after that, the Math Constant increases, as shown below: At 600 Yards, Divide by 14 To use Frank's method, just place your fingertip over the factor you want to determine, which tells you to multiply or divide the other two factors, to learn the third factor. Being a sniper and learning long … FREE PDF & INTERACTIVE E-MAGAZINES. When the Army decided to incorporate a range estimation tool into it sniper optics it chose this … Ramakrishna Kondapalli. Close. Breaking down this motto, it simply means being a sniper takes a lot of patience (and frustration). Map estimation 2. A sniper team must be able to move and survive in a combat environment. Class 12 mathematics formulas CBSE 12th pdf This takes the height of the target in inches, multiplies it by a constant and then divides by the number of mils read in the scope. Let's say you want to see how many inches 5 MOAs are at 200 yards: Just place a fingertip over "IN" and you see that you must multiply the MOAs by the Distance, which means 5 MOAs times 2 (Distance in hundreds of yards). Field Manual 23-10 provides doctrinal guidance on the mission, personnel, organization, equipment, training, skills, and employment of the Sniper. This only applies to .30-caliber rounds, such as the .308 Winchester and .30-06 Springfield. For example, the .308, 168-gr. Jeff Hoffman’s Wind Formula By Major John L. Plaster, USA (ret) In addition to being the founder and president of Black Hills Ammunition, Jeff Hoffman is a reserve lawman and senior SWAT sniper – and, understandably, a pretty fine rifleman. Jeff Hoffman’s Wind Formula By Major John L. Plaster, USA (ret) In addition to being the founder and president of Black Hills Ammunition, Jeff Hoffman is a reserve lawman and senior SWAT sniper – and, understandably, a pretty fine rifleman. ", IN = Inches of change on target You get the same result and it’s way easier. The Sniper Operations Nowadays, snipers are using ballistic computers or even smartphone apps for that. Compensate for that distance, aim dead-on and fire. Combination 8. How much do you adjust your elevation? Mil-relation formula report. Deduct this distance (15 yards) from the 500 yards, then set your sights as if the target is 485 yards away, aim dead-on, and fire. Distance and Elevation Inclination Angle Formula: It is good to know how the applications we employ (i.e. Here's Jim's formula for determining a scope correction in Minutes of Angle: Now let's use the numbers from our example: Thus on a scope with 1/4-minute increments, we'd achieve this 3-1/2 MOA change by raising our elevation fourteen clicks. However, statistics and probability are insanely applicable when it comes to rifles and long-range shooting in particular. Mathpix Snip digitizes handwritten or printed text, and copies outputs to the clipboard that can be pasted into LaTeX editors like Overleaf, Markdown editors like Typora, Microsoft Word, and more. Measure it in mils. Trajectory. 5 . An example: 17 '' target that reads.9 mils reads.9 mils this in your head: 3 4... Distances to a sniper School expects a +/-5 % accuracy with a rifle scope one MOA every... 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