How much kinetic energy to kill a deer

Max Speed: IBO arrow (5 grains/per pound of draw weight). Max Efficiency: arrow ~10-15% over IBO (5.5 grains/per pound of draw weight). Max Energy: arrow ~20% over IBO (6 grains/per pound of draw weight). Shoot three arrows and use the average of the three shots. Enter speed and arrow weight data into the calculator.

A lot of people consider 1000 ft/lbs of kinetic energy to be the minimum amount of power to humanely kill a deer. If you believe this, then the yardage to make this shot is dependent on your load and velocity. The chart I attached figures a 142 grain bullet with a MV at 2700 (which is a pretty conservative speed).Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass. The kind of motion may be translation (or motion along a path from one place to another), rotation about an axis, vibration, or any combination of motions. Translational kinetic energy of a body is equal to one-half the product ...I have seen recommendations of 45# for deer and 55# for elk if using fixed blade broadheads. If using mechanicals 55# for deer and 65# for elk. I think both of these are on the high side. I have a female customer killing deer consistently with 33# of KE and using Rage KE's. PASSTHRU ARCHERY - 828-273-2815.The impact forces in an auto collision are much smaller than the needle, but that car collision may well kill. Momentum and energy are much important concepts than force. Which of momentum or energy is more important depends on the circumstances. ... (determining the kinetic energy of the object at impact e.g. a 10kg mass falling from 1m has 10 ...The easiest way to calculate gravitational potential energy is to use our potential energy calculator. This tool estimates the potential energy on the basis of three values. These are: The mass of the object; Gravitational acceleration, which on Earth amounts to. 9.81 m / s 2. 9.81 \ \mathrm {m/s^2} 9.81 m/s2 or. 1 g.The kinetic energy formula defines the relationship between the mass of an object and its velocity. The kinetic energy KE equation is as follows: KE = 0.5 × m × v². where: m — Mass; and; v — Velocity. With the kinetic energy formula, you can estimate how much energy is needed to move an object.

As I understand it, it assumes pretty much perfect headshot placement. 1) Gray squirrel/Fox Squirrel - 4.5fpe. 2) Eastern Cottontail/Swamp Rabbit - 4fpe. 3) Jack Rabbit White, Black, and Jack O' lope - 4.5fpe. 4) Raccoon/ Bandit - 9fpe.. if it's a big one, 10fpe. 5) Virginia Opossum/ County Rat - 10fpe.The forces and kinetic energy required to penetrate the isolated heads of calves, adult beef cattle, sheep and red deer with a metal probe the same diameter as the bore of an experimental pistol were determined. Approximately 16 and 127 Joules were required to penetrate the heads of adult sheep and cattle, respectively.A chronograph can be used to measure speed or can be obtained from the manufacturer. Once these figures are known, multi- ply velocity X velocity X total arrow weight in grains, and then divide that figure by 450,340 to obtain kinetic energy in foot-pounds. The weight of crossbow arrows is designated in grains.40 According to the folks at GoldTip, it takes about 40 foot-pounds of kinetic energy to get a complete pass-through shot on a whitetail deer. About 50 foot-pounds is required for an elk.How much kinetic energy does the electron gain while accelerating? -6.736 * 10^-15J How is potential difference defined? Here's the best way to solve it. change in KE = q deltaV so gain i …. An electron in a TV is accelerated toward the screen across a potential difference of 42.1 kV.As I understand it, it assumes pretty much perfect headshot placement. 1) Gray squirrel/Fox Squirrel - 4.5fpe. 2) Eastern Cottontail/Swamp Rabbit - 4fpe. 3) Jack Rabbit White, Black, and Jack O' lope - 4.5fpe. 4) Raccoon/ Bandit - 9fpe.. if it's a big one, 10fpe. 5) Virginia Opossum/ County Rat - 10fpe.I've always suggested using Energy (lbs) thats (4 x the animals weight). Example a 200 pound deer needs 800ft.lbs. energy. deer: 700-1400lbs. "Energy". Elk: 1400-2000lbs. of course there is lots of varibles but this is a good rule of thumb.

A crossbow, like the Buck Commander, can travel up to 500 yards if you shoot upwards in the air. However, it is impossible to hit a target from such a distance. If you're on a deer hunt, the ideal distance would be from 50 to 75 yards for experienced hunters. This range of shooting is best if you do not want to miss it.As I understand it, it assumes pretty much perfect headshot placement. 1) Gray squirrel/Fox Squirrel - 4.5fpe. 2) Eastern Cottontail/Swamp Rabbit - 4fpe. 3) Jack Rabbit White, Black, and Jack O' lope - 4.5fpe. 4) Raccoon/ Bandit - 9fpe.. if it's a big one, 10fpe. 5) Virginia Opossum/ County Rat - 10fpe.The Kill Vehicle may be going more than 7,000 miles per hour when it hits the hostile reentry vehicle. The target reentry vehicle (warhead) is also traveling about 15,000 miles per hour. The ...Kinetic energy is important in hunting as it determines the arrow’s penetration and killing power. 3. What happens if the kinetic energy is too low for deer hunting? If the kinetic energy is too low, the arrow may not penetrate deep enough to ensure a clean and quick kill. 4. Can kinetic energy levels vary based on the type of …

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Surely the massive energy of a 375 H&H, 458 Win. Mag., or 458 Lott will kill a deer instantly every time, right? Don't count on it. I've seen half-grown whitetails take a 50-caliber through the chest and run 25 yards before falling.Also, deer are out of season here .... Shot a bison this weekend with a handgun generating all of 882 ft-lbs of muzzle energy..... a 440 grain bullet, rated at 950 fps muzzle velocity. You can check the Beartooth kinetic energy calculater and verify these figures, but it comes to exactly 882 ft-lbs.So, it is indeed legal to hunt Cape buffalo with a .45-70 Government in those countries. On the other hand, Zimbabwe requires a minimum caliber of 9.2mm and a minimum energy of 5,300 Joules (3,909 foot pounds) for hunting "Class A" game like buffalo, hippo, and elephant. Namibia has a minimum energy requirement of 5,400 Joules (3,982 foot ...At 50 yards, the .357 mag has 478 ft/lbs. of bullet energy. That's about where the 9mm starts out. In fact, the first 50 yards of 9mm ballistics is pretty much the same as the .357 is from 50 to 100 yards. Now, if the 357 has enough energy to kill a deer between 50 and 100 yards, the 9mm has enough energy to take a deer up to 50.

This determines the arrow's penetrating ability, which results in a more effective bow kill. You measure kinetic energy through a mathematical formula. To discover your bow's kinetic energy, take the velocity squared and multiply it by the weight of your hunting arrow in grains. ... Most experts agree that deer-sized animals can be taken ...Kintetic Energy Formula. The formula for K.E. as measured in ft./ lbs. is: Mass x Velocity-squared divided by 450,240, with Mass the total arrow weight and velocity is the arrow speed. So let's say you have an arrow that weighs 400 grains that flies at a speed of 290 feet per second. Your equation would look like this: 290 x 290 x 400 / ...The cartridges we use will kill at tremendous distances. I witnessed a deer killed at over 2100 yards with a lead tipped 175 gr bullet from a 7 Rem mag. There were 4 sighters taken at the end of a log before shooting at the deer. The deer dropped like hit with the hammer of Thor. It’s only from 300 FPS and up that you get enough kinetic energy at all feasible hunting distances (up to 50 yards) to be able to comfortably hunt elk. As such we recommend that elk hunters stick to 300 FPS or more. For whitetail deer this requirement is lower – any crossbow 250 FPS and up will be a safe pick. With archery deer hunting season just around the corner, ... Don't Take a Shot at a Deer If You Think It Will Require a Second Shot to Kill the Animal. ... even if you are shooting a high-performance crossbow that launches crossbow bolts at extreme speeds and higher levels of kinetic energy. Even crossbow bolts have a limit as to how much ...The typical .45cal ball only has about 300lbs energy at 100yds but if put through the heart/lungs will kill a deer as dead as if it was 10 yards in front of the muzzle. If you use the manufacturers recommended max or near max powder charge and place your shot, all but the small size round balls will get it done to 100yds.To calculate the kinetic energy, first convert km/h to meters per second: 40km/h = 11.11 m/s. Using the first kinetic energy equation above, replace the values for m and v and get KE = 2200 · (11.11) 2 / 2 = 135775.3 Joules or 135.7753 kiloJoules. Example 2: A ball which weighs 500 grams has a kinetic energy of 500 J.The "best" deer bullet for .243 Win rifles is a 100 grain bullet in a cartridge containing enough powder to propel that bullet/projectile roughly 2900-3000 feet per second (fps). At that bullet weight and projectile velocity, enough kinetic energy is available to make clean reliable kills out to 400 yards. But this isn't the entire story.Kinetic Energy. Kinetic Energy is important for all bow hunters as it is the amount of killing power or hitting power our arrows hit the target with. Different areas have guidelines about the minimum kinetic energy needed to take big game animals.As a general rule of thumb for medium sized game such as deer, goat, antelope, and sheep, 40 ft-lbs. of …How much kinetic energy does the rake gain? Round the answer to two significant digits. Here's the best way to solve it. Violet pulls a rake horizontally on a frictionless driveway with a net force of 2.0 N for 5.0m. How much kinetic energy does the rake gain? Round the answer to two significant digits.

Most recommend at least 40 ft-lbs for a pass though on deer. This set-up is around 28 ft-lbs. If your son understands the importance of a well placed short range shot on a broad side or quartering away deer, I would not hesitate in letting him use it. If you had asked this question several years ago, I doubt there would be very much discussion.

Jan 30, 2011 · I have seen recommendations of 45# for deer and 55# for elk if using fixed blade broadheads. If using mechanicals 55# for deer and 65# for elk. I think both of these are on the high side. I have a female customer killing deer consistently with 33# of KE and using Rage KE's. PASSTHRU ARCHERY - 828-273-2815. The 1,000 ft.-lbs. standard is not guaranteed to flatten a deer, but provided other factors (like adequate bullet construction) are present, this level of kinetic energy is required to get the bullet into the vitals. And, ultimately, adequate penetration into life-essential organs is the only way to kill game. Whelen's rule was for deer-size game.A higher fps means more kinetic energy, which can lead to better penetration and greater accuracy when shooting at longer distances. Generally speaking, most deer …Also, deer are out of season here .... Shot a bison this weekend with a handgun generating all of 882 ft-lbs of muzzle energy..... a 440 grain bullet, rated at 950 fps muzzle velocity. You can check the Beartooth kinetic energy calculater and verify these figures, but it comes to exactly 882 ft-lbs.The bigger the bear, the greater a bolt's kinetic energy needs to be to carry it through the vitals. If you plan to hunt a black bear, your crossbow needs to have at least 40 ft. lbs (kinetic energy). For grizzlies, it should range from 65 to 70 ft. lbs. When your crossbow has higher kinetic energy, your chances of a clean kill will increase."What is thought to be the minimum foot-pounds of energy required to dispatch anything from whitetail deer to moose humanely and ethically?" The most common figure thrown around when hunters discuss the energy required to ethically kill a whitetail is 1,000 ft.-lb.Many cities and suburbs rely on urban hunters to keep the deer populations manageable. HowStuffWorks finds out how it works. Advertisement For hundreds of years, America's wilderne...Flatter trajectory assists in better shot placement. kinetic energy facilitates better penetration. There are cartridges that can offer that out to 300yds or out to 1k and beyond. So assuming you can shoot out to 500yds with confidence IE you can hit a 8” circle at 500 yds on the target range.The problem aims to answer three questions: a. Initial kinetic energy needed to reach a turning point 10 10 10 fm from the nucleus. b. Kinetic energy the proton of a has when it is 20 20 20 fm from the nucleus and moving toward it. c. Kinetic energy the proton of a has when it is 20 20 20 fm from the nucleus and moving away from it.

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In conclusion, I don't think a person could reliably hunt dear with a thrown rock, or even a slung one beyond an anecdotal fluke. A lower limit on a speed you would need to seriously exceed 200m/s (~450mph) if you wanted to try. Of course there must exist some minimum peed it can be propelled that would kill a deer. supersonic baseball cannon. Kinetic Energy. ft/lbs of Energy. Kinetic Energy is the power potential of the arrow at the target, which is based on the arrow’s weight and speed. Optimal Bow Hunting Kinetic Energy Range: Small Game: 25 ft/lbs. Medium Game (Deer, Antelope): 25-41 ft/lbs. Large Game (Elk, Black Bear, Boar): 42-65 ft/lbs. Big Game (Cape Buffalo, Grizzly Bear ... Location. Massachusetts. Had to go do the math, because I have zero idea what .534 slugs equates to... 440 Grain arrow at approximately 270fps is one example. Would be better if you can post your arrow speed / weight because most people are going to be in the same position I was. I would not use killzones under any scenario for Elk.As LR hunters we need to have a basic guideline for how far is too far. 1000 ft/lbs used by many people on this site as a guideline, not the rule. 1600 fps (or whatever the manufacturers spec is) is a good Guideline for how slow most high B.C copper jacketed bullets will open reliably.Sep 22, 2011 · KE is a measurement of available energy at a given moment -- usually at arrow launch -- and is heavily weighted by speed. These "muzzle velocity" arrow speeds are highly misleading, as fletching and atmospheric drag diminish arrow speed considerably beyond 15, 30 or 45 yards. Likewise, KE reveals nothing of how a given broadhead design performs ... A coffee filter of mass 1.3 grams dropped from a height of 1 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? Start from the Energy Principle, and choose as the system the coffee filter, the Earth, and the air 0.012 Additional Materials Section 7.10Accuracy trumps kinetic energy and momentum of the arrow. You could kill any whitetail deer with a 45 lb bow shooting a 300 grain arrow with a field point. But if you don't hit the vitals it wouldn't help shooting a 500 grain arrow with a 80 lb bow and a 3" head. You might end up with a dead deer but good luck finding him. Michelle's Hoyt Trykon Sport, the one she used to kill the hog, is set at 40 pounds and has a draw length of just 23 inches. It launches a 320-grain carbon arrow/broadhead at 198 fps and produces about 28 pounds of kinetic energy. That's pretty light, but it's obviously enough to bring down a big hog and a whitetail. January 18, 2006 - January 5, 2007 RL33240. For some time, U.S. ballistic missile defense (BMD) programs have focused primarily on developing kinetic energy interceptors to destroy attacking ballistic missiles. These efforts have evolved over 30 years and have produced a significant amount of test data from which much can be learned.6.5 Creedmoor vs. .308: Energy and Velocity. As a general rule, the more kinetic energy is driving the bullet toward the target, the more accurate and deadly it will be. Kinetic energy, typically just referred to as "energy" when it comes to guns, is simply the energy something has by virtue of being in motion.Physics questions and answers. During an ice show a 65.0 kg skater leaps into the air and is caught by an initially stationary 75.0 kg skater. (a) What is their final velocity in meters per second assuming negligible friction and that the 65.0-kg skater's original horizontal velocity was 4.00 m/s? 1.9 X m/s (b) How much kinetic energy is lost ... ….

The 1,000 ft.-lbs. standard is not guaranteed to flatten a deer, but provided other factors (like adequate bullet construction) are present, this level of kinetic energy is required to get the bullet into the vitals. And, ultimately, adequate penetration into life-essential organs is the only way to kill game. Whelen's rule was for deer-size game.Arrow weight: 400 grain. The formula for calculating Kinetic Energy is: (Arrow weight) x (Arrow speed) x (Arrow speed) / 450,240. Let’s run our numbers through the formula (and yes, I’m using a calculator. Step one: (400) x (240) x (240) / 450240. The above results in: 23040000 / 450240. Which finally gives us: 51.17.Oct 6, 2016 ... The larger number is recommended, but the lesser number will work on a smaller deer. To hunt for large game like a grizzly bear, you need ...By Bob Robb. When discussing the penetrating ability of a hunting arrow, the two most commonly referred to factors are kinetic energy and momentum. The term kinetic …The 338 Win mag is a good cartridge for shorter ranges and has killed many deer, elk and Bear. ... Energy, or more properly kinetic energy, is 1/2 mass times velocity squared. Momentum is mass times velocity. As you can see velocity is much less important in momentum and the importance of mass, or weight, is much greater. ...A 35-45 psi overpressure may cause 1% fatalities, and 55 to 65 psi overpressure may cause 99% fatalities. (Glasstone and Dolan, 1977; TM 5-1300, 1990) BTW, damage in Humans mainly occurs at the interface of areas of different density eg lungs and eardrums. It is essentially a spallation effect like Newton's Cradle in tissue.With archery deer hunting season just around the corner, ... Don't Take a Shot at a Deer If You Think It Will Require a Second Shot to Kill the Animal. ... even if you are shooting a high-performance crossbow that launches crossbow bolts at extreme speeds and higher levels of kinetic energy. Even crossbow bolts have a limit as to how much ...Kinetic energy of an arrow can be found by using the formula KE=(mv²)/450,240 where m = mass of the arrow in grains and v = velocity of the arrow in fps. If your bow setup ultimately shoots a 400 grain arrow at a respectable 250 fps (a typical field-output for a modern rig), your actual kinetic energy or "power" will be: KE=(mv²)/450240Measuring kinetic energy is how most bowhunters determine an arrow's killing potential. The number is arrived at by multiplying speed squared by arrow mass and dividing the resulting figure by 250,240. ... you can't beat a whitetail to the jump. A fast arrow travels around 300 fps, but sound travels at about 1,225 fps. And whitetail's reaction ... How much kinetic energy to kill a deer, [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1]