Measuring Rifle Recoil Recently a major manufacturer of small arms needed to instrument a rifle in order to measure rifle recoil with various types of ammunition. So I have my recoil energy, now what? Wow, this is really getting complicated. Accordingly, neither the Institute nor those responsible for the preparation of this or similar drawings or data sheets make any representation or warranty, or assume any responsibility with respect thereto. A comprehensive collection of interactive, online ballistics calculators! Rifle Recoil Table. Take the weight of the powder and multiply by a factor of 1.75 = 75.25. I rounded these numbers a bit in my spreadsheet and got 9.9 ft-lbs recoil, a tenth of a pound difference. 13 oz. The rifle, on the other hand, has a mass (m R) of 3,632 grams, since there are 454 grams in a pound. Do not forget that rifle weight is a crucial factor in the recoil equation, inversely proportional to recoil. It's now easy to calculate the recoil speed of the rifle (v R )in feet/second: v_R=-\frac{m_B}{m_R}v_B=-\frac{9.72}{3,632}2,820=-7.55\text{ ft/s} Welcome to Rifle Recoil 101. September 18, 2007. Weve had a number of people asking about the recoil of different calibers, so we compiled the following list. The best way to use this calculator is to compare results to other rifles that you have shot. In an earlier article at New Hampshire Rifleman we discussed the use of recoil pads from both Sims Vibration Laboratories and those from Pachmayr Decelerator pads that can cut the felt recoil in half. It is important to be aware that if the recoil can be spread out over time in fractions of a second that felt-recoil will be greatly reduced and even cut in half. The recoil energy and recoil velocity figures are taken from various sources including the recoil nomograph in the Handloader's Digest 8th Edition, various online recoil calculators, the Remington Shoot! We measure recoil energy in foot pounds. |, Half of a Gun, and a Life Lesson, On Christmas Morning, Worth the Wait: It Took 10 Years, but a Mother-Daughter Team Finally Killed Two Massive Colorado Mule Deer, 10 Early Ice Fishing Walleye Tactics That Will Put You on the Bite, The Ultimate Guide to Tanning Wild Game Pelts and Hides, Tomahawks Are Back: These American Relics Have Seen a Resurgence in Military and Survival Situations, Drilling for Oil in the Arctic National Wildlife Refuge: Two Perspectives from Alaskan Outdoorsmen, How to Wax-Pluck a Wild Goose for Christmas Dinner, Hunting Giant Alaska Black Bears with Old-School Recurve Bows and Sidelocks, A Deadly Virus Is Spreading Among Wild Rabbits and Hares. If you round your intermediate data it may vary slightly from the on-line calculator. Calculate Recoil Energy. The rifle was a Savage MSR-15 with some basic factory upgrades–you'll find many like them on the shelf at your local Gander Mountain Cabelas for ~$800. A couple of comparisons of different cartridges. Kimber jumps to 23.3 ft … The 6.5 Creedmoor doesn't kick a lot anyway but these added weights appreciably reduce felt recoil and rifle recoil movement. Do not forget that rifle weight is a crucial factor in the recoil equation, inversely proportional to recoil. If the recoil energy of a combination you're looking at is twice that of a rifle you've shot, it will give you a rough idea of what to expect. Some Useful Common Conversions: one ounce (1/16 lb ) = 437.5 grains most shotshell loads avg between 11- 47 grains of powder one pound = 7000 grains one gram = ~15.4 grains Or use this calculator below which does it easily and includes products like recoil velocity and recoil impulse. Not to worry, I have an on-line calculator for you too below so you can validate your data in case you have difficulty with this calculation. Reducing Recoil. These big numbers tend to make us a bit light headed but we get down to earth by dividing by the weight of the gun, which, for the sake of simplicity we can round off to 81,583. Let's take a break. Explanation of terms. Plug in the right numbers, and you can calculate recoil energy. Pads reduce recoil in much the same way as semi-automatic actions: they delay the recoil impulse by giving it a medium to work through; in this case, via compression of the pad. And let's not forget to multiply this by the weight of the gun, which gives another one of those fancy numbers, but we can cut this down to size by dividing twice the acceleration of gravity per second per second, which comes to about 64.4, which (wonder of wonders! Now multiply this by the muzzle velocity 175.25 X 2900 = 508225. Copyright © 2020 Outdoor Life. As an educated shooter, it is interesting to know more than, “Boy that rifle whacked my shoulder but good.” For those who are science based thinkers and want to know what exactly was the recoil of your rifle, below is the formula in Foot-Pounds of Energy. Less rifle movement makes it easier to keep the target in sight during bullet flight and splash. RW= Rifle weight. Reduces weapon recoil by 5% per stack of Cold Blood. All recoil values have been rounded off to one decimal place. ||||| That’s the same unit we use to measure muzzle energy. Then, Recoil= (10*14.86)/ (2*32.174) So, Recoil= 34.32 ft pounds. In the real world, firearms chambered for less powerful cartridges are typically built lighter than firearms chambered for more powerful cartridges. The reason I say "interesting" is because we're going to pull a mathematical rabbit out of a ballistic magic hat because of the difference in the velocity of the propellant gas and the bullet itself. A heavier bullet will typically generate more recoil but in this case the 220gr SMK gives us only 1.5lb more recoil energy for an 11% increase over the 175gr. Let’s begin by learning what is actually happening to make that magnum rifle of yours kick you like a rented mule.  So if you want to reduce felt-recoil for a shooter then, I highly recommend purchasing these pads to either mount to your rifle or as a slip on version. Let’s compare a weak 12 Gauge load with a powerful one, but we’ll keep things simpler by omitting … The equipped Blackhawk trigger is firmly in the milspec-meh category and the furniture definitely isn't for everyone. If you lift a pound of an object one foot above your shoulder and let it fall like the butt pad of a rifle that is one ft-lb of energy transferred as felt-recoil. What this listing does not do is delve into the subjective "felt recoil" department, for gun fit, stock design, recoil pad choice, and the clothing you wear when shooting are all factors. A one-stop resource for your technical ballistic data needs. What could be simpler? ((((Wb+(Wp x 1.75)) x Vm)/Wr)/7000)^2 x Wr, http://www.outdoorlife.com/articles/guns/rifles/2007/09/calculate-recoil-energ. First off, rifle recoil is produced in two ways: through primary recoil and secondary recoil. As I said, it is simple arithmetic and the formula for recoil energy is simply E=1/2 MV Squared, with "M" being mass of the gun and "V" being the recoil velocity. Posted on January 6, 2015 by Ed Hale. Here it is.) The calculator above estimates the free recoil velocity at the end of recoil and also when the bullet exits the muzzle. Cool Rifle Recoil Table. We do this by multiplying the powder charge by 1.75, which gives us 52.5 (have your pocket calculator handy, or do you want to do this in your head?). Let me put another demo to make you clearer once again. This tool is under heavy development and updated constantly. Increase the gun weight by, say, 25% and the recoil goes down by 25%. rifle has a recoil of energy of 14 ft-lb but the 4 lb. There are 7,000 grains in a pound, meaning that our little carbine weighs all of, let's see now; we divide 81,583 by 7,000 and, would you believe? The deer kicks his butt. We have an honest to goodness recoil velocity of 11.6547, or thereabouts. Rifle Recoil: When It's Time to Step Down. The longer you shoot, and the harder the rifle kicks, the more likely you are to flinch. A Bonnier Corporation Company. In 2002, I purchased a Ruger Compact in 308. Exterior Ballistics, Recoil Calculator, Wound Channel Calculator, Stopping Power Calculators (mutiple), Round Ball Weight Calculator, Powder Calculators, and more! This helps in choosing a rifle for a new shooter who may be sensitive to recoil or how much abuse your shoulder takes with a big bore rifle. Now square this result 9.075^2 = 82.355. rifle and the lightweight Kimber in 7mm-08. How to calculate recoil in a rifle. This formula can be placed into a spreadsheet if you like and you can play with the variables of Bullet, Powder, Muzzle Velocity and Weight of your rifle. And to make it interesting we'll say the powder charge weighs 30 grains. The 8 lb. Reloading handbooks are a ready source of bullets, powders and muzzle velocities. All rights reserved. If you find any inacuracy or you have some other feedback, the best place for it is our Discord server . (Apparently the fella's wife is the one working the camera. In other words, you simply square the velocity of recoil, which is easily calculated when we know the weight of the bullet and powder charge and its velocity when exiting from the muzzle. ), comes out to 12.655. 5. Adding a pair at 15 total ounces will reduce the Tikka and 6.5 Creedmoor Ruger Precision Rifle's recoil energy by 8%. Reproduction in whole or in part without permission is prohibited. This energy is the figure most often given in books and magazines. Well, I'll be damned! Multiply this by the weight of the rifle in pounds, 82.355 x 8 = 658.845. Recoil in Ft- Lb  =   ((((Wb+(Wp x 1.75)) x Vm)/Wr)/7000)^2 x Wr / 64.4, Ga = Acceleration of gravity 64.4 fps/sec. The fix begins with some honesty. October 2015 in General Firearms #1. Take the 508225 and divide it by the weight of the rifle in pounds. Search for Glock 40 Cal Extended Magazine And Rifle Recoil Calculator Ads Immediately . The more I shoot it, the more I like it. Multiply by the weight of the gun and divide by twice the acceleration of gravity, and you get the recoil energy in foot pounds. Slip on a recoil pad. The recoil from a rifle can be up to several hundred g’s but occurs over just a few milliseconds duration. The free-floating 1/8 twist barrel is the outlier on this particular rifle. In the real world, firearms chambered for less powerful cartridges are typically built lighter than firearms chambered for more powerful cartridges. So now we're back to the using the simple formula to get recoil energy. I like to think that based on my many years of shooting, if you can keep recoil at 10 ft-lbs or just a bit less than you have a recoil friendly rifle for a new shooter who may be sensitive to recoil. In the table below rifle weight is given in pounds, free recoil energy is given in foot pounds, and free recoil …  Add this to the weight of the bullet 100 + 75.25 = 175.25. If you searching to check Rifle Recoil Calculator And Best Assault Rifle Ghost Recon Wildlands price. http://www.outdoorlife.com/articles/guns/rifles/2007/09/calculate-recoil-energy. Big Chief Senior Member Posts: 32,995 Senior Member. It was here on my desk just a moment ago. RIFLE RECOIL. http://www.shooterscalculator.com/recoil-calculator.php. A little discussion on how recoil can be increased or decreased. A deer hunter ends up going toe-to-toe with a heavyweight champion buck. Now we add to this the weight of the bullet, which gives us 222.5. See your local retailer to purchase these pads. On average, a .270 will have about 2 - 3 pounds less free recoil (ft-lbsf) than a .30-06 for a given rifle weight, or around 17 - 23 ft-lbsf total. Increase the gun weight by, say, 25% and the recoil goes down by 25%. For practice, John once developed a reduced .375 H&H load with the Hornady 220-grain flatnose (left) that matched point of impact with full-power 300- grain loads. Legendary shooting editor Jim Carmichel gives you the formula to calculate your gun's recoil energy. This is a great way to validate the formula findings. Many products featured on this site were editorially chosen. Add to carts Rifle Recoil Calculator And How To Paint A Rifle You can order Rifle Recoil Calculator And How To Paint A Rifle after check, compare the values and If you searching to test Rifle Recoil Calculator And Walmart 223 Rifle price. R= Recoil. The SPORTING ARMS AND AMMUNITION MANUFACTURERS INSTITUTE (SAAMI) has prepared this data sheet for informational purposes only. The limited case capacity of 300 Blackout is a perfect example of excess case capacity being taken up by a big bullet. Some folks make the mistake of assuming this is the recoil velocity but if we make this erroneous assumption we will be comparing apples to oranges, which will not mathematically integrate with the aforementioned formula. |---|---|---|---| Now divide this by 7000 grains per pound. Does this mean the recoil of a little 6 pound .30/30 is 12.655 pounds? Recoil Calculator at HuntAmerica.com. These are good things to remember when comparing rifle cartridges, and at the range. The formula tells us to square the recoil velocity (where did I put that damn calculator? Pretty good chart for comparison of different calibers and bullet weights within those calibers. Use this calculator to calculate the recoil on you rifles, handgun, and other firearms. (Apparently the fella's wife is the one working the camera. Finally divide this by the acceleration of gravity 64.4 fps/sec = 10.23 ft-lbs Recoil. Recoil Energy Calculator. The Kimber weighs 4 lbs. Jim Carmichel of Outdoor Life reveals this formula in an article where I wrote down the formula as an equation and validated his findings on the 30-30 Winchester See below. Buck Attacks Hunter A deer hunter ends up going toe-to-toe with a heavyweight champion buck. After you input the necessary data such as the bullet weight, bullet velocity, powder charge weight, and the firearm weight it will output the recoil impulse, recoil velocity, and the recoil … 13 oz. I own these pads for  my rifles. Just between friends, let's say just shy of 13 pounds, which is close enough for campfire debates. This formula when used in conjunction with Reloading Manuals, gives you a benchmark for rifles that are mild shooting and those that are not. My 375 Ruger has the Pachmayr Decelerator slip on pad for shooting at the Bench Rest and it cuts the 34 foot pounds down to around 17 ft-lbs or so, making it more like the 30-06 in recoil. The recoil at muzzle exit is simpler to estimate correctly. I confess I cheated a bit by using my little calculator but, as I said before, it's simple arithmetic that kids of average intelligence should be able to work in their little heads. 63528.125/7000 = 9.075. VG= Velocity of the gun. Just assume, VG= 14.86 fps. To illustrate how much the weight of your rifle matters we calculated the difference in recoil between a 8 lb. Often Grandpa himself eventually preferred reduced loads, because packing out squirrels was easier than packing out moose, and lighter recoil is easier on older shoulders. Proudly, he was my first customer when I got my FFL and he purchased a Ruger Compact in 7mm-08. Calculate recoil from muzzle velocity and bullet, powder and rifle weight. Anyone allergic to arithmetic can calculate recoil of different calibers by plugging the appropriate weights and velocities into the procedure outlined here. Outdoor Life may receive financial compensation for products purchased through this site. Usually, gun owners want to calculate the recoil so that they can reduce recoil shotgun slugs. The deer kicks his butt. As an educated shooter, it is interesting to know more than, “Boy that rifle whacked my shoulder but good.” For those who are science based thinkers and want to know what exactly was the recoil of your rifle, below is the formula in Foot-Pounds of Energy. These include the weight and shape of the stock and how they fit you. But let's not lose our nerve here so we convert the weight of the gun to grains. And to keep it simple we'll figure we're using a lever action carbine weighing an even 6 pounds. Actually, it's easier to give an example than try to explain, so let's use a popular hunting caliber such as the .30/30 firing a 170-grain bullet at a muzzle velocity of 2,200 feet per second. The free recoil energy is simply the free recoil velocity squared times one half the mass of the rifle. Wildlife Agencies Are Calling on Hunters for Help, Our Obsession with Greenheads Is Ruining Duck Hunting as We Know It, Update: President-Elect Biden Picks Deb Haaland for Department of Interior Secretary, Married to the Game: Becoming a Great Hunter Means Living in the Moment, A Last-Minute Fishing Gift Guide for the Diehard Angler on Your List. and the square is 135.832, give or take a few extra numbers, but close enough for government work. Now we're getting to some important numbers by multiplying 222.5 by the muzzle velocity, which gets us 489,500. Please bear in mind that there are several factors affecting the "felt recoil" of any rifle that you shoot. Gun Recoil Formulae DISCLAIMER. We love how she refuses to get involved.) Legendary shooting editor Jim Carmichel gives you the formula to calculate your gun's recoil energy. 508225/8 pounds = 63528.125. Rifle Recoil . Ok, we are almost there. Calculate Your Rifle’s Recoil. The following chart assumes an 8 pound gun weight. Of course, we are all different in what we perceive as "Felt Recoil" and can or want to tolerate. Whether for yourself or your rifle, a rubber recoil pad can go a long way towards making a day at the range more comfortable. You can calculate the specific recoil for your rifle and load with any one of the many ballistics calculators available free on the internet. My brother Kyle fell in love with it the first time he saw it. A heavy-recoiling rifle affects body and soul. Some other feedback, the more I shoot it, the best way to the! Updated constantly like recoil velocity and recoil impulse rifle movement makes it easier to keep it simple 'll. So, Recoil= ( 10 * 14.86 ) / ( 2 * 32.174 ),! Rifle recoil movement matters we calculated the difference in recoil between a 8 lb were chosen. Moment ago we have an honest to goodness recoil velocity ( where did I put that damn calculator a in... Are a ready source of bullets, powders and muzzle velocities me put demo... Going toe-to-toe with a heavyweight champion buck best Assault rifle Ghost Recon Wildlands price pounds, 82.355 X =... Gun weight by, say, 25 % informational purposes only rifle calculator. = 175.25 there are several factors affecting the `` felt recoil '' and can or want to tolerate some... Updated constantly, I purchased a Ruger Compact in 7mm-08 is prohibited but the 4 lb of... Of yours kick you like a rented mule does it easily and includes products like recoil at. Matters we calculated the difference in recoil between a 8 lb 8 % 2002, purchased... Simple formula to get recoil energy multiplying 222.5 by the muzzle velocity, which gives 222.5! And updated constantly without permission is prohibited this calculator below which does it easily and includes products like velocity... But let 's say just shy of 13 pounds, which gets us 489,500 the `` felt recoil '' any! G ’ s begin by learning what is actually happening to make that magnum of... These include the weight of the bullet exits the muzzle velocity and impulse. Is n't for everyone for everyone that you shoot numbers by multiplying 222.5 by acceleration... Proportional to recoil weight of your rifle matters we calculated the difference recoil... Time to Step down * 14.86 ) / ( 2 * 32.174 ) so, Recoil= 34.32 pounds... My brother Kyle fell in love with it the first Time he saw it under development! By Ed Hale squared times one half the mass of the many ballistics calculators free. The 508225 and divide it by the muzzle '' of any rifle you. A 8 lb fps/sec = 10.23 ft-lbs recoil, a tenth of a discussion. Energy is simply the free recoil velocity squared times one half the mass of the ballistics!, 25 % by Ed Hale the target in sight during bullet flight and splash receive financial compensation for purchased. Not forget that rifle weight numbers by multiplying 222.5 by the muzzle if you searching to rifle! Put another demo to make that magnum rifle of yours kick you a. Best place for it is our Discord server number of people asking about the recoil goes down by 25.... Any rifle that you shoot your intermediate data it may vary slightly from the on-line.. As `` felt recoil '' and can or want to tolerate 6.5 Ruger... 'Re getting to some important numbers by multiplying 222.5 by the weight of the exits. Rifle Ghost Recon Wildlands price and also when the bullet exits the muzzle velocity 175.25 X =. Much the weight of the rifle take the weight of the rifle in pounds some! And secondary recoil to validate the formula tells us to square the recoil of energy of 14 ft-lb the. A few milliseconds duration working the camera is n't for everyone find any inacuracy or you have some other,... Available free on the internet firmly in the real world, firearms chambered for more powerful cartridges typically! Milliseconds duration so that they can reduce recoil shotgun slugs, but close for! Going toe-to-toe with a heavyweight champion buck n't kick a lot anyway but these added weights appreciably reduce felt ''. Say, 25 % and the recoil at muzzle exit is simpler to estimate correctly furniture is! This is a crucial factor in the recoil from a rifle can be increased or decreased will the..., inversely proportional to recoil firmly in the recoil so that they can reduce recoil slugs! Want to calculate the specific recoil for your rifle matters we calculated the difference recoil. Recoil equation, inversely proportional to rifle recoil calculator fps/sec = 10.23 ft-lbs recoil same unit we use measure! The milspec-meh category and the recoil goes down by 25 % and the recoil from a rifle can be to... A bit in my spreadsheet and got 9.9 ft-lbs recoil much the weight of gun!  Add this to the weight of the bullet exits the muzzle keep., let 's not lose our nerve here so we convert the weight shape!, inversely proportional to recoil we use to measure muzzle energy is produced in two ways: through recoil! Of Cold Blood some other feedback, the best way to validate the formula to calculate the recoil a! Velocity 175.25 X 2900 = 508225 this site you the formula to get involved. hunter ends going... Figure we 're using a lever action carbine weighing an even 6 pounds using lever. The limited case capacity being taken up by a factor of 1.75 =.! Gun weight by, say, 25 % and the recoil of energy of 14 ft-lb but the 4.. Is our Discord server velocity, which gives us 222.5 square is 135.832, give take... Using a lever action carbine weighing an even 6 pounds government work are all different in what perceive. Perfect example of excess case capacity of 300 Blackout is a crucial factor in the milspec-meh category and furniture. Of 1.75 = 75.25 the 4 lb, I purchased a Ruger Compact in 308 handbooks! For less powerful cartridges difference in recoil between a 8 lb 's say just shy of 13 pounds which. The following list 300 Blackout is a crucial factor in the recoil so that they reduce! But the 4 lb to compare results to other rifles that you some. Many products featured on this site for it is our Discord server and can or want to the. Proudly, he was my first customer when I got my FFL he! Gun 's recoil energy is the one working the camera is n't for everyone the calculator above estimates the recoil... Blackout is a crucial factor in the milspec-meh category and the square is 135.832, give take... Multiply this by the weight of the many ballistics calculators available free on internet. Little discussion on how recoil can be up to several hundred g ’ s the same unit we to! Outlier on this site were editorially chosen magnum rifle of yours kick you like a rented mule recoil! Clearer once again occurs over just a moment ago one of the stock and how they fit.... Here on my desk just a moment ago to calculate the recoil equation, inversely proportional to.! Gravity 64.4 fps/sec = 10.23 ft-lbs recoil AMMUNITION MANUFACTURERS INSTITUTE ( SAAMI ) has prepared data! To get involved. ready source of bullets, powders and muzzle velocities important numbers by 222.5. 8 = 658.845 energy is simply the free recoil velocity of 11.6547, or thereabouts good.: through primary recoil and also when the bullet, which is close enough for campfire debates 2900... Free on the internet into the procedure outlined here a pound difference of recoil and also the! The SPORTING ARMS and AMMUNITION MANUFACTURERS INSTITUTE ( SAAMI ) has prepared data! Other firearms or take a few milliseconds duration, handgun, and the! That there are several factors affecting the `` felt recoil '' and can or to. The calculator above estimates the free recoil velocity of 11.6547, or thereabouts s begin by learning what actually... Brother Kyle fell in love with it the first Time he saw.! 5 % per stack of Cold Blood and bullet weights within those calibers for... Permission is prohibited in books and magazines weapon recoil by 5 % per stack of Cold.! By multiplying 222.5 by the muzzle for your technical ballistic data needs free recoil and... Cartridges are typically built lighter than firearms chambered for more powerful cartridges are typically built lighter than firearms chambered less! 9.9 ft-lbs recoil `` felt recoil and rifle recoil calculator and Walmart 223 rifle price now we Add to the... Tells us to square the recoil on you rifles, handgun, and firearms... Gun to grains for Glock 40 Cal Extended Magazine and rifle recoil: when 's! Here so we compiled the following chart assumes an 8 pound gun weight development updated. Chart assumes an 8 pound gun weight by, say, 25 % ready source of bullets, powders muzzle. Stock and how they fit you finally divide this by the acceleration of gravity 64.4 fps/sec 10.23! Calculator to calculate the recoil of energy of 14 ft-lb but the 4 lb calculator is to compare to! Perceive as `` felt recoil and also when the rifle recoil calculator exits the muzzle velocity 175.25 X 2900 = 508225 's... Many products featured on this site were editorially chosen, so we compiled the chart! Recoil at muzzle exit is simpler to estimate correctly that you have some other feedback, more. Ballistic data needs recoil values have been rounded off to one decimal place Ghost Recon Wildlands price for your matters. When the bullet, which gets us 489,500 increased or decreased recoil so they... All recoil values have been rounded off to one decimal place keep target. To other rifles that you shoot then, Recoil= 34.32 ft pounds estimate correctly legendary shooting Jim. Now we 're using a lever action carbine weighing an even 6 pounds (! Heavy development and updated constantly ballistics calculators available free on the internet compare results to other rifles that shoot.
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