Now multiply this by the muzzle velocity 175.25 X 2900 = 508225. Reduces weapon recoil by 5% per stack of Cold Blood. Let's take a break. This energy is the figure most often given in books and magazines. and the square is 135.832, give or take a few extra numbers, but close enough for government work. R= Recoil. And to make it interesting we'll say the powder charge weighs 30 grains. So I have my recoil energy, now what? A deer hunter ends up going toe-to-toe with a heavyweight champion buck. The recoil at muzzle exit is simpler to estimate correctly. Let’s begin by learning what is actually happening to make that magnum rifle of yours kick you like a rented mule. The more I shoot it, the more I like it. Of course, we are all different in what we perceive as "Felt Recoil" and can or want to tolerate. Calculate Your Rifle’s Recoil. Weve had a number of people asking about the recoil of different calibers, so we compiled the following list. RIFLE RECOIL. See your local retailer to purchase these pads. The limited case capacity of 300 Blackout is a perfect example of excess case capacity being taken up by a big bullet. 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. If you searching to check Rifle Recoil Calculator And Best Assault Rifle Ghost Recon Wildlands price. Cool Rifle Recoil Table. You can calculate the specific recoil for your rifle and load with any one of the many ballistics calculators available free on the internet. What could be simpler? The SPORTING ARMS AND AMMUNITION MANUFACTURERS INSTITUTE (SAAMI) has prepared this data sheet for informational purposes only. It was here on my desk just a moment ago. Calculate recoil from muzzle velocity and bullet, powder and rifle weight. Kimber jumps to 23.3 ft … Well, I'll be damned! I own these pads for  my rifles. Reloading handbooks are a ready source of bullets, powders and muzzle velocities. Explanation of terms. Rifle Recoil: When It's Time to Step Down. Take the 508225 and divide it by the weight of the rifle in pounds. Reproduction in whole or in part without permission is prohibited. How to calculate recoil in a rifle. Less rifle movement makes it easier to keep the target in sight during bullet flight and splash. The recoil from a rifle can be up to several hundred g’s but occurs over just a few milliseconds duration. The rifle, on the other hand, has a mass (m R) of 3,632 grams, since there are 454 grams in a pound. Increase the gun weight by, say, 25% and the recoil goes down by 25%. 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. Slip on a recoil pad. This is a great way to validate the formula findings. VG= Velocity of the gun. rifle and the lightweight Kimber in 7mm-08. If you searching to test Rifle Recoil Calculator And Walmart 223 Rifle price. 13 oz. The 8 lb. Anyone allergic to arithmetic can calculate recoil of different calibers by plugging the appropriate weights and velocities into the procedure outlined here. 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. The deer kicks his butt. My brother Kyle fell in love with it the first time he saw it. Now we add to this the weight of the bullet, which gives us 222.5. 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. These include the weight and shape of the stock and how they fit you. 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. In the real world, firearms chambered for less powerful cartridges are typically built lighter than firearms chambered for more powerful cartridges. |---|---|---|---| 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 Just between friends, let's say just shy of 13 pounds, which is close enough for campfire debates. 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 free-floating 1/8 twist barrel is the outlier on this particular rifle. rifle has a recoil of energy of 14 ft-lb but the 4 lb. (Apparently the fella's wife is the one working the camera. A couple of comparisons of different cartridges. Ok, we are almost there. A comprehensive collection of interactive, online ballistics calculators! The following chart assumes an 8 pound gun weight.  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. The best way to use this calculator is to compare results to other rifles that you have shot. Multiply by the weight of the gun and divide by twice the acceleration of gravity, and you get the recoil energy in foot pounds. 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. I rounded these numbers a bit in my spreadsheet and got 9.9 ft-lbs recoil, a tenth of a pound difference. The free recoil energy is simply the free recoil velocity squared times one half the mass of the rifle. Whether for yourself or your rifle, a rubber recoil pad can go a long way towards making a day at the range more comfortable. ||||| Let’s compare a weak 12 Gauge load with a powerful one, but we’ll keep things simpler by omitting … Rifle Recoil . All recoil values have been rounded off to one decimal place. 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. The deer kicks his butt. All rights reserved. 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. 13 oz. 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. 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. Buck Attacks Hunter A deer hunter ends up going toe-to-toe with a heavyweight champion buck. October 2015 in General Firearms #1. |, 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. We love how she refuses to get involved.) Take the weight of the powder and multiply by a factor of 1.75 = 75.25. Here it is.) 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. Usually, gun owners want to calculate the recoil so that they can reduce recoil shotgun slugs. Gun Recoil Formulae DISCLAIMER. Increase the gun weight by, say, 25% and the recoil goes down by 25%. September 18, 2007. We have an honest to goodness recoil velocity of 11.6547, or thereabouts. 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. A little discussion on how recoil can be increased or decreased. 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. RW= Rifle weight. Pretty good chart for comparison of different calibers and bullet weights within those calibers. 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. Posted on January 6, 2015 by Ed Hale. Proudly, he was my first customer when I got my FFL and he purchased a Ruger Compact in 7mm-08. Adding a pair at 15 total ounces will reduce the Tikka and 6.5 Creedmoor Ruger Precision Rifle's recoil energy by 8%. A Bonnier Corporation Company. Now divide this by 7000 grains per pound. Big Chief Senior Member Posts: 32,995 Senior Member. 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. 63528.125/7000 = 9.075. This tool is under heavy development and updated constantly. 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. ((((Wb+(Wp x 1.75)) x Vm)/Wr)/7000)^2 x Wr, Do not forget that rifle weight is a crucial factor in the recoil equation, inversely proportional to recoil. Please bear in mind that there are several factors affecting the "felt recoil" of any rifle that you shoot. To illustrate how much the weight of your rifle matters we calculated the difference in recoil between a 8 lb. So now we're back to the using the simple formula to get recoil energy. 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} Rifle Recoil Table. 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. Calculate Recoil Energy. Recoil Energy Calculator. Use this calculator to calculate the recoil on you rifles, handgun, and other firearms. This formula when used in conjunction with Reloading Manuals, gives you a benchmark for rifles that are mild shooting and those that are not. The 6.5 Creedmoor doesn't kick a lot anyway but these added weights appreciably reduce felt recoil and rifle recoil movement. 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. 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. Recoil Calculator at Just assume, VG= 14.86 fps. If you find any inacuracy or you have some other feedback, the best place for it is our Discord server . 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.

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