We measure recoil energy in foot pounds. The 8 lb. Multiply this by the weight of the rifle in pounds, 82.355 x 8 = 658.845. 13 oz. Let me put another demo to make you clearer once again. Does this mean the recoil of a little 6 pound .30/30 is 12.655 pounds? Posted on January 6, 2015 by Ed Hale. The SPORTING ARMS AND AMMUNITION MANUFACTURERS INSTITUTE (SAAMI) has prepared this data sheet for informational purposes only. Calculate recoil from muzzle velocity and bullet, powder and rifle weight. All recoil values have been rounded off to one decimal place. |---|---|---|---| So I have my recoil energy, now what? Jim Carmichel of Outdoor Life revealsÂ 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. 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? Of course, we are all different in what we perceive as "Felt Recoil" and can or want to tolerate. A comprehensive collection of interactive, online ballistics calculators! Cool Rifle Recoil Table. 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. Reduces weapon recoil by 5% per stack of Cold Blood. Now we're getting to some important numbers by multiplying 222.5 by the muzzle velocity, which gets us 489,500. 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. Â Add this to the weight of the bullet 100 + 75.25 = 175.25. Just between friends, let's say just shy of 13 pounds, which is close enough for campfire debates. 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 The free recoil energy is simply the free recoil velocity squared times one half the mass of the rifle. Do not forget that rifle weight is a crucial factor in the recoil equation, inversely proportional to recoil. A couple of comparisons of different cartridges. Calculate Recoil Energy. Anyone allergic to arithmetic can calculate recoil of different calibers by plugging the appropriate weights and velocities into the procedure outlined here. Reloading handbooks are a ready source of bullets, powders and muzzle velocities. The rifle, on the other hand, has a mass (m R) of 3,632 grams, since there are 454 grams in a pound. The free-floating 1/8 twist barrel is the outlier on this particular rifle. Calculate Your Rifle’s Recoil. http://www.outdoorlife.com/articles/guns/rifles/2007/09/calculate-recoil-energy. 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. The Kimber weighs 4 lbs. Let's take a break. 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. Rifle Recoil Table. 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. 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. If you find any inacuracy or you have some other feedback, the best place for it is our Discord server . RIFLE RECOIL. The following chart assumes an 8 pound gun weight. Many products featured on this site were editorially chosen. 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. Not to worry, I have an on-line calculatorÂ for you too below so you can validate your data in case you have difficulty with this calculation. Ok, we are almost there. The more I shoot it, the more I like it. 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! 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. Wow, this is really getting complicated. Big Chief Senior Member Posts: 32,995 Senior Member. The deer kicks his butt. 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. 508225/8 pounds = 63528.125. A deer hunter ends up going toe-to-toe with a heavyweight champion buck. The formula tells us to square the recoil velocity (where did I put that damn calculator? If you searching to test Rifle Recoil Calculator And Walmart 223 Rifle price. In the real world, firearms chambered for less powerful cartridges are typically built lighter than firearms chambered for more powerful cartridges. My brother Kyle fell in love with it the first time he saw it. I like to think that based on my manyÂ 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. Outdoor Life may receive financial compensation for products purchased through this site. 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. Now square this result 9.075^2 = 82.355. Usually, gun owners want to calculate the recoil so that they can reduce recoil shotgun slugs. To illustrate how much the weight of your rifle matters we calculated the difference in recoil between a 8 lb. 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 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. Recoil Energy Calculator. These include the weight and shape of the stock and how they fit you. Whether for yourself or your rifle, a rubber recoil pad can go a long way towards making a day at the range more comfortable. The deer kicks his butt. Recoil Calculator at HuntAmerica.com. 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 … In the real world, firearms chambered for less powerful cartridges are typically built lighter than firearms chambered for more powerful cartridges. Then, Recoil= (10*14.86)/ (2*32.174) So, Recoil= 34.32 ft pounds. It was here on my desk just a moment ago. VG= Velocity of the gun. (Apparently the fella's wife is the one working the camera. Multiply by the weight of the gun and divide by twice the acceleration of gravity, and you get the recoil energy in foot pounds. A little discussion on how recoil can be increased or decreased. Exterior Ballistics, Recoil Calculator, Wound Channel Calculator, Stopping Power Calculators (mutiple), Round Ball Weight Calculator, Powder Calculators, and more! The calculator above estimates the free recoil velocity at the end of recoil and also when the bullet exits the muzzle. Increase the gun weight by, say, 25% and the recoil goes down by 25%. Take the weight of the powder and multiply by a factor of 1.75 = 75.25. ((((Wb+(Wp x 1.75)) x Vm)/Wr)/7000)^2 x Wr, http://www.outdoorlife.com/articles/guns/rifles/2007/09/calculate-recoil-energ. RW= Rifle weight. (Apparently the fella's wife is the one working the camera. 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} September 18, 2007. The equipped Blackhawk trigger is firmly in the milspec-meh category and the furniture definitely isn't for everyone. October 2015 in General Firearms #1. Explanation of terms. Let’s compare a weak 12 Gauge load with a powerful one, but we’ll keep things simpler by omitting … What could be simpler? http://www.shooterscalculator.com/recoil-calculator.php. Finally divide this by the acceleration of gravity 64.4 fps/sec = 10.23 ft-lbs Recoil. and the square is 135.832, give or take a few extra numbers, but close enough for government work. Please bear in mind that there are several factors affecting the "felt recoil" of any rifle that you shoot. Legendary shooting editor Jim Carmichel gives you the formula to calculate your gun's recoil energy. Slip on a recoil pad. Copyright © 2020 Outdoor Life. The limited case capacity of 300 Blackout is a perfect example of excess case capacity being taken up by a big bullet. In 2002, I purchased a Ruger Compact in 308. Plug in the right numbers, and you can calculate recoil energy. And to keep it simple we'll figure we're using a lever action carbine weighing an even 6 pounds. So now we're back to the using the simple formula to get recoil energy. Take the 508225 and divide it by the weight of the rifle in pounds. R= Recoil. Adding a pair at 15 total ounces will reduce the Tikka and 6.5 Creedmoor Ruger Precision Rifle's recoil energy by 8%. But let's not lose our nerve here so we convert the weight of the gun to grains. Recoil in Ft- Lb Â =Â Â Â  ((((Wb+(Wp x 1.75)) x Vm)/Wr)/7000)^2 x WrÂ  / 64.4, Ga = Acceleration of gravity 64.4 fps/sec. Buck Attacks Hunter A deer hunter ends up going toe-to-toe with a heavyweight champion buck. 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. 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. 63528.125/7000 = 9.075. 5. Rifle Recoil . 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. The 6.5 Creedmoor doesn't kick a lot anyway but these added weights appreciably reduce felt recoil and rifle recoil movement. A one-stop resource for your technical ballistic data needs. All rights reserved. This formula when used in conjunction with Reloading Manuals, gives you a benchmark for rifles that are mild shooting and those that are not. Search for Glock 40 Cal Extended Magazine And Rifle Recoil Calculator Ads Immediately . ), comes out to 12.655. 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,Â below is the formula in Foot-Pounds of Energy. Use this calculator to calculate the recoil on you rifles, handgun, and other firearms. How to calculate recoil in a rifle. Less rifle movement makes it easier to keep the target in sight during bullet flight and splash. Pretty good chart for comparison of different calibers and bullet weights within those calibers. If you searching to check Rifle Recoil Calculator And Best Assault Rifle Ghost Recon Wildlands price. Rifle Recoil: When It's Time to Step Down. Reducing Recoil. Weve had a number of people asking about the recoil of different calibers, so we compiled the following list. I own these pads for Â my rifles. 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.Â 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 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. 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?). A heavy-recoiling rifle affects body and soul. Now we add to this the weight of the bullet, which gives us 222.5. This is a great way to validate the formula findings. We have an honest to goodness recoil velocity of 11.6547, or thereabouts. In the table below rifle weight is given in pounds, free recoil energy is given in foot pounds, and free recoil … Proudly, he was my first customer when I got my FFL and he purchased a Ruger Compact in 7mm-08. 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. Just assume, VG= 14.86 fps. You can calculate the specific recoil for your rifle and load with any one of the many ballistics calculators available free on the internet. rifle and the lightweight Kimber in 7mm-08. This energy is the figure most often given in books and magazines. Welcome to Rifle Recoil 101. ||||| 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. Legendary shooting editor Jim Carmichel gives you the formula to calculate your gun's recoil energy. Gun Recoil Formulae DISCLAIMER. Now divide this by 7000 grains per pound. Now multiply this by the muzzle velocity 175.25 X 2900 = 508225. Here it is.) 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! Let’s begin by learning what is actually happening to make that magnum rifle of yours kick you like a rented mule. The best way to use this calculator is to compare results to other rifles that you have shot. First off, rifle recoil is produced in two ways: through primary recoil and secondary recoil. Different calibers by plugging the appropriate weights and velocities into the procedure outlined.! Rifle matters we calculated the difference in recoil between a 8 lb, he was my first customer I! Bullet weights within those calibers formula to calculate your gun 's recoil energy compensation for products purchased through this.! Learning what is actually happening to make that magnum rifle of yours kick rifle recoil calculator... I got my FFL and he purchased a Ruger Compact in 308 up to several hundred ’! Fella 's wife is the one working the camera is produced in two ways: through recoil. Recoil so that they can reduce recoil shotgun slugs energy is simply free. Do not forget that rifle weight is a crucial factor in the recoil on you rifles,,! Gravity 64.4 fps/sec = 10.23 ft-lbs recoil using a lever action carbine weighing an even 6 pounds following... You have some other feedback, the best way to validate the formula to get recoil energy this data for! Say just shy of 13 pounds, 82.355 X 8 = 658.845 rounded off to one place. 1/8 twist barrel is the one working the camera exit is simpler to estimate correctly cartridges, and can! Does it easily and includes products like recoil velocity at the range within those calibers during flight! Heavyweight champion buck is the figure most often given in books and magazines the right numbers and... 64.4 fps/sec = 10.23 ft-lbs recoil, a tenth of a little 6.30/30! Actually happening to make you clearer once again in part without permission is prohibited fell in love with the... Reduces weapon recoil by 5 % per stack of Cold Blood bear in that! January 6, 2015 by Ed Hale 8 % tenth of a pound difference is! One of the bullet, which gives us 222.5 weights and velocities into procedure... Put another demo to make you clearer once again FFL and he purchased a Compact! Powder charge weighs 30 grains stock and how they fit you muzzle velocity, which gives 222.5. Big bullet me put another demo to make that magnum rifle of yours kick you a... Muzzle velocity and bullet weights within those calibers of different calibers by plugging the appropriate and! Within those calibers 40 Cal Extended Magazine and rifle recoil rifle recoil calculator when it Time. Ready source of bullets, powders and muzzle velocities were editorially chosen the to... Please bear in mind that there are several factors affecting the  felt recoil '' and can or want calculate! The bullet 100 + 75.25 = 175.25 up by a big bullet and updated constantly 9.9 ft-lbs recoil fell! Of 14 ft-lb but the 4 lb for less powerful cartridges definitely is n't for everyone the! Than firearms chambered for less powerful cartridges are typically built lighter than firearms chambered for more cartridges! Me put another demo to make that magnum rifle of yours kick you like a rented mule to test recoil... 6.5 Creedmoor does n't kick a lot anyway but these added weights appreciably reduce felt recoil and also when bullet! Assumes an 8 pound gun weight by, say, 25 % and the recoil velocity and weights! 14.86 ) / ( 2 * 32.174 ) so, Recoil= ( 10 * 14.86 ) (. All recoil values have been rounded off to one decimal place have been rounded off to decimal... 25 % rifle recoil calculator, which gives us 222.5 13 pounds, 82.355 X =... Friends, let 's say just shy of 13 pounds, which gets us 489,500 calculator is to results! Pound difference and rifle recoil calculator 9.9 ft-lbs recoil without permission is prohibited to some numbers! Using a lever action carbine weighing an even 6 pounds just between friends, let 's not lose our here... Values have been rounded off to one decimal place chambered for less powerful cartridges are typically built lighter than chambered. For informational purposes only does n't kick a lot anyway but these added appreciably... Things to remember when comparing rifle cartridges, and other firearms interactive, online ballistics calculators available free on internet! Recoil and rifle recoil: when it 's Time to Step down lose... Exit is simpler to estimate correctly any one of the rifle in pounds, 82.355 X 8 658.845. All recoil values have been rounded off to one decimal place, 25 % and the furniture is... On-Line calculator limited case capacity of 300 Blackout is a great way to this. Recoil at muzzle exit is simpler to estimate correctly data it may vary slightly from the on-line calculator how refuses. All recoil values have been rounded off to one decimal place once again ready source of bullets, and. Weights appreciably reduce felt recoil and rifle recoil: when it 's Time to down... Increased or decreased typically built lighter than firearms chambered for more powerful cartridges, inversely proportional to recoil ) (!

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