Simple. The ballistic calculator provides a simple and easy method to calculate the trajectory for any rifle or handgun load. $13.95. There are numerous others. Thatâs why shooting 7/8-ounce, 20-gauge loads at 1200 fps in even light, little 6Â½-pound guns is so comfortable: youâre only dealing with about 15.4 ft./lbs. Recoil Energy in foot pounds = (Bw Mv + 4700 Pw)” / 64.348 Gw where Gw = weight of gun in pounds, Bw = weight of the ejecta (shot and wad) in pounds. Everything you need to know about the shotgun sports is a mouse-click away. ( Log Out / Only 7 left in stock - order soon. Home > Ballistic Calculators. The gun has a 30 inch barrel, ported with overbore and extended forcing Cone. My uncle had 2 single shot 12 gauge, which at a glance appeared to be identical, but there was a slight difference in the angle of the stock. Calculating Recoil Velocity In a typical recoil situation, the release of a body of smaller mass (body 1) has an impact on a larger body (body 2). Based on attributes. Tom was formerly the Ballistics Research Director at Oregon Institute of Technology and then served as a Ballistics Specialist for the Dept. If you run the numbers on your gun using a 15.5 gain powder charge and a weight of 29.2s for the wad, plus 383 grains for the shot, you’ll find you have 12.77 ft/lb of recoil on your gun with the shells you describe. There are two ways to measure recoil: Subjective and Objective. addy8fd8885eca91d112c27f3bba1461f722 = addy8fd8885eca91d112c27f3bba1461f722 + 'charter' + '.' + 'net'; Perk Points. of recoil to your shoulder and face through the same gun. I’ve shot some serious rifles with muzzle brakes and they do work. http://www.ShotgunReport.com. I have seen a few situations where overboring and long cones definitely did reduce recoil, but they did it by reducing velocity due to gas blowby. Porting certainly does shoulder reduce recoil on high power rifles and pistols. This site uses Akismet to reduce spam. For trap and skeet guns, a straighter stock is â¦ He then co-authored their peer-reviewed scientific reports. It takes into account the weight of the gun, weight of the ejecta (shot, wad, amount of powder) and the velocity of the ejecta. Only 3 left in stock - order soon. . It can be measured or computed empirically and has been for this recoil table. Hail of Bullets ... Reduces relood time of Shotguns and Light Machine Guns by 40%. That includes places to shoot, ways to improve your shooting and the latest new products. temperature, wind speed, and altitude). Some people feel that porting will help face slap by keeping the muzzles down during recoil. So, youâre not going to be able to handle very well a 1â
-ounce load in that same eight-pound gun by 50 feet per second increments. Maybe I’m just too insensitive. Our goal is to provide you with the best coverage in wing and clays shooting. The O/U gives you a punch (all the recoil at once), while the gas gun gives you a push (same recoil but delivered over more time). The Technoid writing for Shotgun Report, LLC of free recoil. Bloodbath. However, perceived recoil, what the shooter feels, is a highly subjective matter. He is a court-recognized shotshell/shotgun expert witness. If you don’t feel good, you have too much recoil. You also have to consider that equal recoil numbers may not feel the same. Choose a gun weight appropriate for the loads you intend to shoot. These payloads and velocities are all from current Winchester AA loads. QuickLOAD predicts 2592fps and the recoil calculator gives a recoil velocity of 7.83fps and the change in dwell time goes from 10ms to 7.692ms we now get .7227â of travel under power, in addition to the lower velocity. If youâre shooting a 1â
-ounce lead load with an instrumental velocity of 1145 feet per second, that load in your eight-pound gun is generating about 19.86 foot/pounds of free recoil; letâs call it 20 ft./lbs. Tom Roster is an independent ballistics consultant and author specializing in the design and testing of shotshell loads for U.S. shotshell and reloading components manufacturers. Most shooters recognize sooner or later that recoil is the biggest single negative to their shotgun shooting success. 03 Sniper03, Mar 1, 2019. Ever feel like the recoil of a 12 gauge is too much for you? Contact him in Oregon at (541) 884-2974, Gamebore Target Loads Cross the Atlantic to the U.S. Market, Consider Reloading for Truly Customized Shotshell Loads, Beware Shoddy Barrel Modifications â Part 2, Beware of Shoddy Barrel Modifications â Part 1. In this shotgun recoil energy calculator topics, we are just one step further to get the final result. 100 straight products. I refer every shotgunner to Hodgdonâs Basic Reloaders Manual specifically the section entitled âShotshell Dataâ (visit Hodgdonâs website: www.hodgdon.com). Recoil. Sorry, your blog cannot share posts by email. Calculate Recoil Energy. About the Recoil Calculator How does it work? This email address is being protected from spambots. Level. (i.e. What to do? Subjective recoil can further be broken down into issues caused by real recoil and issues caused by gun fit. Shotgun Recoil If you have a 7 pound or so gas-operated autoloading shotgun, you'll need to be somewhere in the neighborhood of a 9 pound O/U to get down to the same level of recoil as that 7 pound arena gas-operated shotgun. Maybe, but that hasn’t been my experience. You might get away with more if you go to a gas-operated autoloader, but even then 17 ft./lbs. load weight in ounces, the muzzle velocity. caliber, bullet type, weight, ballistic coefficient, and muzzle velocity), your firearm (e.g. Type in the appropriate values & click the Calculate button. My boots aren’t off yet but it sure is time for beer. $14.99. September 18, 2007. The standard recoil energy formula does not take into account the time span over which the recoil is delivered. 50. Example: Most people feel that a gas operated semi-automatic kicks less than an O/U of equal weight using the same shell. Join an elite group of readers who receive their FREE e-letter every week from Shotgun Life. In the shooting sports we call that reaction recoil or "kick." You'll discover ways to improve your shooting, learn about the best new products and how to easily maintain your shotgun so it's always reliable. My records show that the best scores over time tend to be shot by shooters dealing with less than 16 ft./lbs. Remember too, face slap isn’t really the kind of recoil we are talking about here. ( Log Out / Honest. In these capacities he designed and administered the worldâs six most extensive lead versus nontoxic shot duck, goose, pheasant and dove shooting tests ever conducted. Objective recoil is simply a mathematical formula. This energy is the figure most often given in books and magazines. Hartmann’s Hint #75: COVID-19 and The Mental Game, Clay Target Nation, December 2020, (20-21). There are only three ways to reduce recoil. Subjectively, just shoot 100 shells through your gun and see how you feel. Enjoy your articles immensely. Tom was formerly the Ballistics Research Director at Oregon Institute of Technology and then served as a Ballistics Specialist for the Dept. Perhaps it would be more accurate for me to say that porting does work to reduce shotgun recoil, but it doesn’t do it enough to matter. Do not forget that rifle weight is a crucial factor in the recoil equation, inversely proportional to recoil. Change ), You are commenting using your Twitter account. Youâre going to need to be shooting 7/8 ounce or lighter loads at very modest velocities. The free recoil energy is simply the free recoil velocity squared times one half the mass of the rifle. At 1300 feet per second, a one ounce load would only be transferring about 20.41 ft./lbs. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. R (ft lbs)=RW*VG2*32.174 That is, if you increase the weight of a 7 pound gun by 10 % to 7.7 pounds, you will lower calculated free recoil by around 10%. Bruce Buck sight height and zero range), and environmental inputs (e.g. 2 3/4 inch AA or STP shells at 1200 Ft. per sec. The recoil calculator at beartooth bullets shows that the shotgun is way heavier recoiling. 30 06 hunting shotgun slugs 20 gauge vs 12 slide 2 slide 2 the best ammo for your remington 870 Low Recoil Practice Lo Shooting SportsmanShotgun Recoil Chart Amr20 Gauge Slug Recoil Chart Pflag12 Gauge ShotgunShooterscalculator Recoil CalculatorPractical To The Tactical Shotgun Gun DigestShotgunworld Recoil Measurements By ShotgunShotgun Recoil Chart â¦ Thatâs because decreases in shot charge weight have the most significant effect on decreasing recoil. Change ), You are commenting using your Google account. Recoil Calculator at HuntAmerica.com. And Gator brought up another good point. of free recoil. I don’t think that barrel work (backboring, cones, ports) has much to do with the time over which recoil is delivered, but a hydraulic stock or gas action certainly does. Share your build. For those who have shot both, preferable from an interchangeable barreled gun, do you find this to be true? Letâs say youâre a 12-gauge shooter toting a typical sporting clays or waterfowl type shotgun weighing in at close to eight pounds. My Cyberpunk build. Plug in these numbers in the recoil calculator above: 158 gr bullet, 13 gr of powder, 0.74 lb gun weight and 1115 fps, use 0% for muzzle brake since it doesn't have one. One is to increase gun weight; the second is to install a spring effect between the gun and the shoulder, i.e., recoil pad, other compressible device, or a gas-operated autoloading action; the third is to reduce the actual recoil created by the shotshell load itself. Recoil energy calculator This program calculates the recoil energy when you shoot a shotgun. Slow powders also do in theory, but I think that the difference is so slight that most people can’t tell the difference. Just be aware that if a “worked on” gun kicks a lot less than a stock one, double check the before and after velocities before drawing any conclusions. PO Box 6423Thomasville, GA 31758Phone: 229-236-1632. I shoot a 7 pound 20 guage O/U (Browning 525 Sporting. If both bodies start from rest, the law of conservation of momentum states that m 1 v 1 = -m 2 v 2. That is true about the Semi-Auto Shotguns having less recoil than the Pumps. Now, put down the rest of the measurements on the formula below to get the desired result. And that, my friends, is a recoil level any man, woman or child with a body weight of 125 pounds or more can comfortably shoot 100 rounds a day â every day â and never develop recoil-related flinches or eye-shutting. Roster spends about 100 days afield each year testing lead and nontoxic hunting and target shotshell loads, then traveling worldwide reporting on his findings to industry and wildlife professionals, hunters and shooters, and in his writings for various shotgunning magazines. A Shotgun Recoil Example Here is a nice 12 Gauge shell with â
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