Jbm balistics

The ballistic coefficient is represents the ratio of the drag of the standard (e.g. G1 standard bullet) bullet to that of the bullet you are shooting. A ballistic coefficient of 0.100 means that your bullet has 10 times the drag of the standard bullet. Bullet Length The length of …

Terminal ballistics: the study of the interaction of a projectile with its target, whether that be flesh (for a hunting bullet), steel (for an anti-tank round), or even furnace slag (for an industrial slag disruptor)." ... JBM Ballistics, Thanks to krung. Last revised by .‎For serious shooters who are serious about their shot!!! ••• The most advanced ballistics calculator on the market ••• Trusted by the best: Armed Forces / Shooting Instructors / Lifelong Marksmen ••• Advanced Precision Ballistics 5 STARS: "I shoot on Team Louisiana Precision Rifles in Tactical rif…Read reviews, compare customer ratings, see screenshots, and learn more about JBM IDPA Classifier. Download JBM IDPA Classifier and enjoy it on your iPhone, iPad, and iPod touch.JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). Ballistics calculations and formulas for small arms.JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). RIANOV™ CSI unit mounted to Remington 700 ... JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). RIANOV™ CSI unit mounted to Remington 700 Then I went to the JBM online ballistics calculator and punched in Hornady's numbers. At 500 yards, the 6A drops 52.9 inches and the 65CM 54.2. 6A shoots flatter at 500 yards by 1.3 inches. At 500 yards, the 6A drifts, in a 10 mph wind, 18.6 inches and the 65CM 15.6. 65CM drifts less at 500 yards by 3 inches. Trajectory μCard - Constant Drop. Calculate a trajectory card from bullet, velocity, firearm and atmospheric parameters. Density is calculated using input density altitudes. Muzzle velocity is found by using linear interpolation between two velocities measured as a fuction of temperature. Explanation of terms.

JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). RIANOV™ CSI unit mounted to Remington 700 Important: Since there are thousands of bullet shapes the Ballistic Coefficient calculations made below are not 100% accurate, if you are shooting out past 400-500+ yards your going to need to get the exact BC from the bullet's manufacturer. We are working on a massive list, but this list won't be ready for a few weeks or months. Spitzer. The Spitzer is a very popular and aerodynamic bullet shape.Ballistics calculations and formulas for small arms. Trajectory μCard. Calculate a trajectory card from bullet, velocity, firearm and atmospheric parameters.All emails sent to JBM are kept. Email addresses are not shared with any entity outside JBM. JBM does not use email addresses for any purpose other than historical. At no time will JBM send SPAM, requests or other information to users that have emailed JBM. Inputs to forms are used to calculate specific information requested by users.Suggestion: Zero in your outfit at 50 yds, then, on a clean target, shoot a 5-shot group at the same distance. Circle this group with a pen or whatever and write "50" next to it. Next, take the same target and put it up at 100 yds, and shoot another 5-shot group. Circle this group, and label it also.Kinetic energy is a function of the bullet mass and motion. This motion involves the velocity and rotations. It is represented by the following equation. KE = 1/2 M v 2 + 1/2 I w 2. NOTE: this assumes a single rotational axis and forward motion of the bullet. For multiple rotations and non-symmetric bodies, things get a little more complicated.The distance from the point of the first velocity measurement to the point of the second measurement. This is the distance between the two chronographs. Drag function. A drag function (or G function) provides the forces on a standard bullet for which the drag function was derived. A bullet's ballistic coefficient then relates the drag on any ... Statistics. These statistics [calculated Thursday, May 02, 2024 at 14:06 MDT] are based on the last 31 days of bullets chosen from the bullet library. Each graph shows the top manufacturers, descriptions, calibers and weights by popularity. If a category has more than twenty values, only the top twenty are shown. #.

Ballistics calculations and formulas for small arms. Drag Function Conversion Terms Input Data Ballistic CoefficientTrajectory μCard - Constant Drop. Calculate a trajectory card from bullet, velocity, firearm and atmospheric parameters. Density is calculated using input density altitudes. Muzzle velocity is found by using linear interpolation between two velocities measured as a fuction of temperature. Explanation of terms.Ballistics calculations and formulas for small arms. Trajectory Card. Calculate a trajectory card from bullet, velocity, firearm and atmospheric parameters.May 15, 2023 · 4. Applied Ballistics. The Applied Ballistics mobile app is certainly my favorite ballistics calculator application for Android and iOS. Yes, it’s expensive, costing $30, but in my experience, no other ballistics calculator comes close to the functionality you get with this application. Applied Ballistics App. The JBM Power Factor application is an simple application for calculating IDPA, SASS and USPSA power factors and divisions. Data Entry. Select a sport by tapping the desired tab index. Current choices are IDPA (I), SASS (S) and USPSA (U). …A modified (modified by R. L. McCoy) version of M. A. Morris' RARDLIFT code with corrections for small arms bullets and medium caliber cannon projectiles. Provides interim estimates of lift, overturning moment and yaw drag coefficients. Inputs are very similar to McDrag (above) but it does require the center of gravity location.

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Ballistic coefficient (BC) is a fudge factor that rates how efficiently a bullet flies. ... This information is a pain to find, but thankfully, the folks at JBM Ballistics have compiled lots of ...Plastic Tip Length. Length of the plastic "ballistic tip" if it exists. Otherwise zero. Caliber. Diameter of the bullet. Muzzle Velocity. The velocity of the bullet as either (1) measured at some distance from the muzzle or (2) as estimated from reloading data. The on-line ballistics page can correct for the distance to chronograph.Power Factor Input Data Bullet Weight Weight of the bullet. Caliber Diameter of the bullet Muzzle Velocity The velocity of the bullet as either (1) measured at some distance from the muzzle (see applicable rule book for measuring methods)About. JBM has been providing free online ballistics calculators and info for approximately fifteen years. During that time JBM has written custom ballistics software for a number of different platforms including desktop workstations and embedded processors and microcontrollers.AAM UBIQUITOUS OPPORTUNITIES 2021-2 F CA- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Currencies Stocks

The ballistics software "Projektil 2" calculates and shows the muzzle-energy in Joule or ft-lbs, the IPSC-factor or the MIP (a german energy-factor for practitcal pistol) after the input of bullet weight (gram or grain) and muzzle-velocity. ... JBM - Downloads. A number of useful small ballistics software programs. Web Based Free ...Ballistic Coefficient (Time) Calculate a ballistic coefficient from initial velocity, time of flight and distance. Calculuated ballistic coefficient is displayed for selected drag function. Explanation of terms. Near Velocity (500.0 to 4800.0 ft/s) [3000.0] [?]Ballistic Coefficient (Velocity) Calculate a ballistic coefficient from near velocity, far velocity and distance between velocity measurement points. Ballistic coefficient is calculated for input drag function. Explanation of terms. Near Velocity (500.0 to 4800.0 ft/s) [3000.0] [?] ft/s m/s. Far Velocity (500.0 to 4800.0 ft/s) [2900.0] [?]May 18th, 2011 JBM-Powered Ballistics Software for Apple iPads. A dedicated iPad version of Ballistic ('Ballistic' App), a full-featured ballistics calculator for the iPhone, is available for the growing numbers of iPad users. As with the iPhone version, 'Ballistic' App for the iPad is "powered by JBM Ballistics" so it offers very precise solutions — typically, at 600 yards, JBM ...Make your own baked tortilla chips at home! So much better than store-bought chips because you can limit the added salt and oil. Serve with salsa or guacamole. Prep time: 5 minutes...Use this ballistic calculator in order to calculate the flight path of a bullet given the shooting parameters that meet your conditions. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. It will a produce a line graph showing the bullet drop and flight path of the bullet.JBM is working on some iOS applications including a ballistics calculator. There are currently no plans to support Android systems. IDPA Classifier A simple iOS application for entering and tracking IDPA classifier progress.Mil-Dot ballistics head-up display. Features: World renowned JBM ballistics engine for the most precise, accurate calculations in the industry. Load Library: Nearly 5, 000 commercial and military ...If checked, the windage is changed to make the bullet cross the line of sight at the zero range -- zero windage at the zero range. Wind Angle. The angle of the wind relative to downrange (0 degrees), 90 degrees is to the shooter's right, 180 is a head wind, and 270 degrees is to the shooter's left. Wind Speed 1, 2 or 3. Calculation of the sectional density is straight forward. For a 300 grain, .338 caliber bullet, the sectional density is: SD = [ 300 gr / (7000 gr/lb) ] / [ 0.338 in ] 2 = 0.375 lb/in 2. NOTE: With the common definition of the sectional density, the units have to be converted when used with drag functions, velocity, etc, to convert the in 2 to ... If checked, the windage is changed to make the bullet cross the line of sight at the zero range -- zero windage at the zero range. Wind Angle. The angle of the wind relative to downrange (0 degrees), 90 degrees is to the shooter's right, 180 is a head wind, and 270 degrees is to the shooter's left. Wind Speed 1, 2 or 3.Ballistics calculations and formulas for small arms. Drag/Twist. Calculate drag and stability from bullet dimensions, weight, specific gravity and barrel twist.

- World renowned JBM ballistics engine for the most precise, accurate calculations in the industry. - Load Library: 5,000 commercial and military projectiles and factory loads from leading manufacturers or specify your own projectile properties. Includes latest commercial data and military coefficients established at Aberdeen Proving Grounds.

JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). RIANOV™ CSI unit mounted to Remington 700 ...DOS ballistics program from Tioga Engineering, Pennsylvania. You can contact them at P.O. Box 913, Wellsboro, PA, 16901, (505) 724-3533 (thanks Don!) $24. Trajectory Plot. Shareware exterior ballistics software, $10 Registration Fee. There is also a group size calculator, also $10.The ballistic coefficient is represents the ratio of the drag of the standard (e.g. G1 standard bullet) bullet to that of the bullet you are shooting. A ballistic coefficient of 0.100 means …The Leatherwood ART Scope Trajectory Cam needs to be set to the correct cam setting for your caliber and rifle. This video goes over how to use JBM Ballistic...Plastic Tip Length. Length of the plastic "ballistic tip" if it exists. Otherwise zero. Caliber. Diameter of the bullet. Muzzle Velocity. The velocity of the bullet as either (1) measured at some distance from the muzzle or (2) as estimated from reloading data. The on-line ballistics page can correct for the distance to chronograph.Ballistics solvers use various types of algorithms to model how a projectile behaves in flight. In particular, various drag models predict the all-important air resistance that we mentioned before. They require good information about the particular bullet you're using to drive their calculations — the most commonly seen BC standards are ...Calculates the power factor and checks divisions for IDPA, IPSC, TSA, USPSA and SASS. Output shows whether or not the division is made (green/red) and by how much in percent. Calculates the free recoil energy and velocity using firearm weight, charge weight, bullet weight and firearm velocity.A drag function is tabulated for a standard bullet of known shape. This is done by measuring the drag of the standard bullet. This standard bullet has a ballistic coefficient (BC) of 1.0. Other bullets of the same shape but different size have different ballistic coefficients. The drag function and BC are then used to calculate the drag ...These statistics [calculated Wednesday, March 20, 2024 at 16:25 MDT] are based on the last 31 days of bullets chosen from the bullet library. Each graph shows the top manufacturers, descriptions, calibers and weights by popularity. If a category has more than twenty values, only the top twenty are shown.

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Instead of fixating on the stocks like the banks, look at what really matters: how darned rich this country is....JPM On days like today, people often lose the forest through the t...JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). RIANOV™ CSI unit mounted to Remington 700 ...The G7 Ballistic coefficient does a better job of predicting the trajectory of modern long ogive, boat tail bullets to longer ranges than the G1 standard, however, it is still not modeling the exact Cd value or shape and will result in errors. Utilizing the popular and well-designed JBM ballistics code, Table 1.Many modern ballistics programs, including the free online JBM Ballistics Program, are able to use BCs referenced to G7 standards. When available, these BCs are more appropriate for long range bullets, according to Bryan. [Editor's NOTE: BCs are normally reported simply as an 0.XXX number. The lb/in² tag applies to all BCs, but is commonly ... The offset of the sight (or scope) to the left or right of the centerline of the barrel. Show Drop and Windage Deltas. If checked, only the differences in drop and windage from the zeroed trajectory are printed on output. Differences are in units of "Drop Units" and "Windage Units". Drag Function Array Conversion. Convert multiple ballistic coefficients and find the best new drag function. Explanation of terms. Drag Function [?] Velocity Units [?] Caliber (0.100 to 2.000 in) [0.308] [?]JBM Ballistics (JBM), based in Las Cruces, NM, has provided free online ballistics info for the past 15 years. JBM Ballistics' sophisticated algorithms deliver extremely reliable ballistics solutions. To complement its software, JBM plans to introduce a new hardware product: the BallistiComp. Laster this year, JBM will unveil its new ...The twist rate (inches per turn) of the barrel. This value is used to calculate stability. It should not be confused with the required twist calculated by Bullet Drag. The diameter of the base of the bullet. For boattails, this is smaller than the caliber. The length of the boattail from the rear of the bearing surface to the base of the bullet.Ballistic Coefficient (Velocity) Calculate a ballistic coefficient from near velocity, far velocity and distance between velocity measurement points. Ballistic coefficient is calculated for input drag function. Explanation of terms. Near Velocity (500.0 to 4800.0 ft/s) [3000.0] [?] ft/s m/s. Far Velocity (500.0 to 4800.0 ft/s) [2900.0] [?]Size & 22LR Ballistics. The 22 LR is a tiny round at only 1” long. Its low power means it gets by with a very thin brass shell casing, a contributing factor to its nice price tag. Such a thin casing enables a rimfire primer, which is struck through the brass by the firing pin. Still, the 22 LR’s muzzle velocity is nothing to scoff at.Bullet Weight. The weight of the bullet. Charge Weight. Weight of the powder charge. Firearm Weight. Weight of the firearm. Muzzle Velocity. The velocity of the bullet as either (1) measured at some distance from the muzzle or (2) as estimated from reloading data. ….

The ballistic coefficient is represents the ratio of the drag of the standard (e.g. G1 standard bullet) bullet to that of the bullet you are shooting. A ballistic coefficient of 0.100 means that your bullet has 10 times the drag of the standard bullet. Bullet Length The length of …Its effect is negligible at medium distances, but becomes important around 1000yds and beyond, especially because it can add to other minimal errors and keep you off target. Coriolis effect affects everything not firmly attached to the Earth’s surface. It affects fluids, like air and water, as well as floating and flying objects like ships ...Ballistic Coefficient (Time) Calculate a ballistic coefficient from initial velocity, time of flight and distance. Calculuated ballistic coefficient is displayed for selected drag function. Explanation of terms. Near Velocity (500.0 to 4800.0 ft/s) [3000.0] [?]Ballistics calculations and formulas for small arms. Drag Function Conversion. Convert a ballistic coefficient from one drag function to another.If checked, the windage is changed to make the bullet cross the line of sight at the zero range -- zero windage at the zero range. Wind Angle. The angle of the wind relative to downrange (0 degrees), 90 degrees is to the shooter's right, 180 is a head wind, and 270 degrees is to the shooter's left. Wind Speed 1, 2 or 3.Ballistic's world renowned JBM ballistics engine delivers the gold standard in calculations that other applications compare themselves to. iPad-Specific Features: NEW: iPad Air 2 internal ...The Effect of Wind on Flat-Fire Trajectories, Robert L. McCoy, BRL Report Number 1900, Ballistic Research Laboratories, Aberdeen Proving Ground, Maryland, August 1976, [ADB012872] Exterior Ballistics, McShane, Kelley and …The formulas for the drag function as a function of the drag coefficient can be found here . For any bullet, the drag force must be the same no matter what drag function is chosen since the drag force is physical and depends on the shape of the bullet. This means that the following equation must be true. G (M)/C = G (M)/C.The angle of the tilt of the firearm to the right or left from vertical. Positive angles are to the right. Distance to Chronograph. The distance from the muzzle of the firearm to the chronograph used for muzzle velocity measurements. If the muzzle velocity is estimated, enter 0.0 for this value -- no correction. Jbm balistics, Ballistics calculations and formulas for small arms. Trajectory Card Terms Input Data Altitudes A comma separated list of altitudes., Calculate Power Factor from muzzle velocity, bullet diameter and bullet weight. Divisions for TSA, IDPA, IPSC, USPSA and SASS are displayed. SASS has a maximum velocity that is taken into account. Explanation of terms. Bullet Weight (5.0 to 15000.0 gr) [115.0] [?] gr gm. Caliber (0.100 to 2.000 in) [0.355] [?], Feb 13, 2011. #1. am going to put up a 22lr long range course out to 400 yards. the question i have is keeping the target size accurate ie comparable to 1moa per hundred yards of a 308. so doing this would i compare drop values in moa of the 22 to the 308 and use that distance to base the target size? meaning the 308 drops 10.5 moa at 500 would ..., Need a social media app developers in Ireland? Read reviews & compare projects by leading social media application developers. Find a company today! Development Most Popular Emergi..., I am trying to learn how to shoot F-Class on my own. I want to know how much of a hold off is needed for a 10 mph 90 degree crosswind at 550 yards with a .308 Berger 175gr Match Target BT Long Range bullet at 2600 fps assuming a 100 yard zero. According to JBM Ballistics its 20" of wind drift..., - World renowned JBM ballistics engine for the most precise, accurate calculations in the industry. - Load Library: 5,000 commercial and military projectiles and factory loads from leading ..., Ballistic's world renowned JBM ballistics engine delivers the gold standard in calculations that other applications compare themselves to. This is the STANDARD Edition. The ADVANCED Edition also ..., Ballistics calculations and formulas for small arms. Trajectory Card. Calculate a trajectory card from bullet, velocity, firearm and atmospheric parameters., The K9 Ballistics Tough & Durable™ line addresses everyday wear and tear. These dog beds are sustainably made and built to withstand occasional chewing, digging, scratching, frequent washing, and dogs that are tough on their beds. Dog beds made with our ballistic rip-stop, waterproof fabrics are purposefully over-built and designed to last ..., Sniper's Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Founded by Frank Galli in 2000, Sniper's Hide has been offering informational videos, podcasts, and other support to its users in one location. Forum Statistics. Threads., Ballistic is the definitive ballistics trajectory calculator for iOS devices, intended for serious shooters who want a serious (and seriously accurate application). Ballistic calculates trajectory, windage, velocity, energy, lead, and bullet flight time for any valid range. Ballistic can compensate for atmospheric conditions such as temperature ..., 10 May 2010 -- Add JLK bullets. 3 May 2010 -- Complete update of website for announcement of BallistiComp. 15 March 2010 -- Modified point mass calculations to include changes in atmosphere when shooting uphill and downhill. 11 January 2010 -- Fixed humidity output units and updated bullet library. 16 November 2009 -- Fixed a drop units …, Kinetic energy is a function of the bullet mass and motion. This motion involves the velocity and rotations. It is represented by the following equation. KE = 1/2 M v 2 + 1/2 I w 2. NOTE: this assumes a single rotational axis and forward motion of the bullet. For multiple rotations and non-symmetric bodies, things get a little more complicated., I had QuickTarget and JBM Balistics do some simply trajectory calculation for me with my 30-40 Krag using an NOE 311-202-RN at 1760 fps (chronographed)… QT says +2.3" at 50 yards for a 150 yard zero. JBM says +2.1" at 50 yards. These numbers are basically the same… Yet, when I actually shoot at 150 yards with the impact of ~2.3" high at 50 yards, I am about +2.5" at 150 yards…, Find the latest Legal & General Collective Investment Trust - Russell 3000 Collective Investment Trust (LGRUCX) stock quote, history, news and other vital information to help you w..., The 224 Valkyrie is based on the 6.8 SPC rifle cartridge. And because it spits a projectile about the same size as the 5.56 NATO with the much bigger case capacity provided by the 6.8, it does so with ease, effectiveness, and accuracy. In fact, the 224 is known as a longer distance cartridge that remains supersonic way past the 1,000 yard mark ..., Modified Point Mass Trajectory. Calculate a modified point mass trajectory from bullet, velocity, firearm and atmospheric parameters. Explanation of terms. Caliber (0.100 to 2.000 in) [0.308] [?] in mm., Ballistic Coefficient (Time) Calculate a ballistic coefficient from initial velocity, time of flight and distance. Calculuated ballistic coefficient is displayed for selected drag function. Explanation of terms. Near Velocity (500.0 to 4800.0 ft/s) [3000.0] [?], Ballistics calculations and formulas for small arms. This is the new home of JBM's online ballistics resources. Much of this will look familiar to you -- just use the links to the left to find what you're looking for., Ballistics calculations and formulas for small arms. Power Factor Input Data Bullet Weight Weight of the bullet. Caliber, Suggestion: Zero in your outfit at 50 yds, then, on a clean target, shoot a 5-shot group at the same distance. Circle this group with a pen or whatever and write "50" next to it. Next, take the same target and put it up at 100 yds, and shoot another 5-shot group. Circle this group, and label it also., You mentioned ballistics, and the best website I have used is JBM ballistics. You can look at trajectories, etc. for a wide range of conditions. Finally, the .338 Win Mag. is awesome and cheaper to shoot than the RUM. It will take down everything Alaska has to offer. However, if you ever plan to hunt the Big Five in Africa, you'll need to buy ..., JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). RIANOV™ CSI unit mounted to Remington 700 ..., The K9 Ballistics Tough & Durable™ line addresses everyday wear and tear. These dog beds are sustainably made and built to withstand occasional chewing, digging, scratching, frequent washing, and dogs that are tough on their beds. Dog beds made with our ballistic rip-stop, waterproof fabrics are purposefully over-built and designed to last ..., JBM Ballistics has partnered with RIANOV to provide integrated ballistics solutions, including the M06 passive ranging calculator, the SOLO calculator and the CSI. The CSI is a new digital angle indicator giving both cant and slope (or cosine of slope). RIANOV™ CSI unit mounted to Remington 700 ..., Ballistics calculations and formulas for small arms. Trajectory. Calculate a trajectory from bullet, velocity, firearm and atmospheric parameters., The Library and the JBM ballistics engine go to work the second a shooter begins to build his or her own Ballistic Bullet Profile. That Profile contains the basic inputs-including the manufacturer's ballistic coefficient and bullet weight, sight height, and muzzle velocity, to name just a few-plus the all-important atmospheric conditions., The JBM Ballistics computer, written by James B. Millard, is among the world's finest ballistic engines in existence. Used by competition shooters, hunters, and the military, this powerful ballistics library delivers precision results. Results is what it's really about, isn't it? The JBM engine also adds new features such as velocity ..., My understanding is that the JBM range card function uses density altitude. My understanding is also that the temperature inputs are for transonic calculations. Density altitude is pressure altitude corrected for temperature, and, to a minute extent, humidity. It is a measure of air density. 4000 DA is 4000 DA whether the temperature is 0F or 120F., JBM Ballistics. This is the new home of JBM's online ballistics resources. Much of this will look familiar to you -- just use the links to the left to find what you're looking for. Ballistics calculations and formulas for small arms., With that said, the JBM ballistics engine is far superior to its competitors in that, in addition to basic 3-DOF calculations, JBM's sophisticated engine is capable of accounting for advanced calculations including linear wind calculations (and calculations from more than one wind zone), better atmospheric density equations, and incorporates ..., The offset of the sight (or scope) to the left or right of the centerline of the barrel. Show Drop and Windage Deltas. If checked, only the differences in drop and windage from the zeroed trajectory are printed on output. Differences are in units of "Drop Units" and "Windage Units". , Both Winchester and JBM ballistics have fairly comprehensive libraries with all of this information included with particular Winchester cartridges or bullets in the case of JBM Ballistics. The final piece of information you'll need is the height of the center line of your scope over the rifle bore. In most modern firearms this ranges from ...