How much kinetic energy to kill a deer

How much kinetic energy is released in this explosion? A 6.0 kg object, initially at rest in free space, "explodes" into three segments of equal mass. Two of these segments are observed to be moving with equal speeds of 20 m/s with an angle of 60 degrees between their directions of motion.

How much kinetic energy to kill a deer. The kinetic energy of the projectile drops dramatically the further downrange it travels primarily due to energy lost in the form of heat generated by friction against the air itself. ... but in most states, it's illegal to use a .22LR for deer hunting. This is because the .22LR has too low of impact energy to kill a deer humanely and quickly ...

Calculate the kinetic energy in MeV of the electron. Compare this with the classical value for kinetic energy at this velocity. (The mass of an electron is \(9.11 \times 10^{-31}kg\).) Strategy. The expression for relativistic kinetic energy is always correct, but for (a), it must be used because the velocity is highly relativistic (close to ...

http://www.deeranddeerhunting.com Deer Talk Now. Mark Kayser explains how to calculate the kinetic energy of your bow so you're ready for the upcoming whitet...Kinetic energy figures can be misleading, however, if dissimilar calibers and bullets are compared. The same Remington ballistics table that provided the energy figures for the .270 and .30-06 loads above also shows that the .30-30 factory load using a 150 grain Core-Lokt bullet carries 1296 ft. lbs. of kinetic energy at 100 yards.A company spokesman said: An old rule of thumb is that it takes 1,000 ft-lbs of energy to kill a deer. The 20 gauge has plenty of energy. For example, the Winchester Supreme 2¾" 20-gauge Partition Gold load uses a 260-grain bullet with a muzzle velocity of 1,900 fps and a muzzle energy of 2084 ft lbs.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.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 / ...

If the car brakes over a distance of 50 m before coming to rest, what is the force of friction. Here's the best way to solve it. (a) (b) The energy gets dissipat …. Pkg 0.21 7. A car of 1200 kg is travelling at 20 m/s when it slams on the brakes. a.In hunting, how much damage a bullet does is more important than its toughness. A bullet that sheds weight and deforms chaotically causes more damage. Conventional mono-metal bullets dump about 50% of their energy in the first 8 inches. Traditional cup-and-core and lead core dump about 80%. Somewhere along the way, the notion that you can ...The minimum fps (feet per second) needed to kill a deer with a crossbow is between 250-400 fps. This range provides the necessary kinetic energy to penetrate the hide and reach vital organs of the animal, resulting in an ethical and humane kill. It is important to note that higher speeds can cause too much tissue damage, which should be avoided ...At the end of the day, the question of draw weight doesn't matter as much as it once did to bowhunters — but 40 pounds is still a good starting point. Lighter than that will work, too, so long as you know the constraints and make the proper adjustments to your equipment. Get your camo fix at the Realtree store.Deer velvet covers the bone and cartilage that grows into antlers. People have tried deer velvet for many reasons, but with no evidence to support its use. There is interest in usi...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.

One other thing about comparing rifle cartridges to pistol cartridges, as far as ranges go, rifles usually carry way too much energy for their own good-what I mean by this is a .30-06 or a .300win mag can easily kill a deer at 1000yrds, but there are about 6 guys (non-military) in the world that could make that shot under hunting conditions ...If an object is moving, it has kinetic energy. In fact, the faster an object is moving, the more kinetic energy it has. Muzzle Energy Calculation. You can calculate kinetic energy using the classic formula you memorized in Physics class. Here it is for those of us who have long since forgotten: KE = 0.5 • m • v 2. where m = mass of objectOct 12, 2020 · Seems the answer is 1300 KE when the round hits the deer. That's not at the muzzle. I don't see any PCP rifles that are any where close to that. I know people are taking deer with thier PCPs. Arkansas law says, "40-caliber, produce at least 400 ft. lbs. of energy". Guess that's a start. Not great, but not terrible. The energy at the muzzle is 1588 ft-lbs. Using "Ballistic", an iPhone ballistic calculator, The bullet will drop to about 375 ft-lbs at 600 meters. The bullet velocity will also still be supersonic at that distance, so the bullet should remain stable for that portion of its flight.Here are the equations: Momentum = Mass x Velocity. Kinetic Energy = (1/2)Mass x Velocity^2. Notice that you can't have one without the other. Each is defined in terms of the same variables - Mass and Velocity. When the author of your book said that energy is not a factor in a kill, something got lost in translation.

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Hunters aim to kill. In addition to being a Level 2 U.S. archery coach, Mark Beck is a hunter and an engineer with Plano Synergy who has experience in designing both arrows and crossbows. He makes no secret which side of the argument he's on. "I want more kinetic energy to drive that broadhead through," he said.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.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 case length of a 243 is 2.045", while the Creedmoor has a shorter case length of 1.92". Some might mix these two rounds up because their overall length is close to the same, and rim diameter is the same. The 6.5 Creedmoor round is 2.825" long with a rim diameter of .473". The 243 Winchester is 2.71" long with a rim diameter of .473".

ETF strategy - HORIZON KINETICS ENERGY REMEDIATION ETF - Current price data, news, charts and performance Indices Commodities Currencies StocksDec 1, 2012 · To score an instant kill with the usual deer rifle, exact bullet placement is required in a vulnerable area. The required degree of bullet placement will vary almost directly in proportion to the size and life tenacity of the animal, but will be somewhat inversely proportional to the striking energy and momentum of the bullet provided that expansion and penetration are uniformly balanced. 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.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. A generality is that around 1200 ft. lbs. of energy on target is necessary for humane elk kills. Another is that the rifle caliber should be .270 or greater. I think that bullet placement is much more important than kinetic energy or bullet diameter, but this can serve as a rough guide to caliber and the maximum range at which a given load ...B. During the collision, how much kinetic energy is converted. A 1000-kg car traveling east at 50 km/h passes over the top of a hill and hits a 2900-kg truck stalled in the middle of the lane. The impact causes the truck to roll eastward at 15 km/h. A. During the collision, how much kinetic energy is converted to internal energy in the Earth ...Feb 4, 2005 · placed. 2500 ft/lbs is recommended for animals weighing 1500 pounds and 4000 ft/lbs + for. dangerous game for obvious reasons. The main thing is to use a bullet at or above it's designed velocity and energy so as to get the. best performance from it under ALL hunting conditions. So to sum it up if you are hunting deer. For deer hunting with bows, it is recommended to have a kinetic energy level of at least 40 ft-lbs to ensure a clean and ethical kill. See 3,000+ New Gun Deals …All but the .243 are still carrying the generally accepted 1,000 ft.-lbs. of energy necessary to kill a deer out to 500 yards, which I grant you is farther than we have any business shooting at deer-size gam. At the far more practical distance of 300 yards, which is still a long shot, every cartridge on that list will kill a deer, antelope or ...The venerable Remington 165-grain Core-Lokt in 30-06 Springfield generates 2870 foot-pounds of KE at 2800 feet-per-second with momentum of 2.050 slug fps. This is 41 times the KE, but only 4.3 times the momentum of a 350-grain arrow at 300 fps (70 ft-lbs / 0.469 slugs). This illustrates a significant difference in how bullets and arrows kill.A coffee filter of mass 1.6 grams dropped from a height of 2 m reaches the ground with a speed of 0.6 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.

Dec 1, 2012 ... The efficient killing of deer-size game, taken-as-they-come, is supposed to be dependent on a striking energy of at least 1000 ft/lbs, with ...

Energy gives us an idea of how much power there is to initiate things like bullet expansion and penetration, but does not guarantee that they will occur. It is generally recommended that a small bore (.24-.32 caliber) rifle bullet suitable for medium size (CXP2 class) game be carrying about 800 ft. lbs. of kinetic energy when it hits.A .22LR cartridge is capable of killing a deer if shot placement is accurate; however, a .22LR is not a legal cartridge for hunting deer in almost all US states because it does not have enough power to ethically hunt a deer and ensure a quick kill. Still, let's investigate what would happen if a .22 bullet were shot at a deer.It's something one would use to stand against something like a grizzly. To get the energy of 70 ft. lb. it needs to travel with at least 250 fps (feet per second). We need to find a bow which can accelerate a 500 gr arrow to 250 fps. A Bear Archery Grizzly with 48 pounds manages to accelerate a 503 gr arrow to 140 fps.The killing power of an arrow is measured in Kinetic Energy. Think of it as the force behind the arrow that drives it. More force equals deeper penetration. ... the minimum KE required for deer-sized game is 25 pounds. Most modern bows with at least a 30- to 40-pound draw weight and a 24-inch arrow can achieve that. ... A stand over 15 or so ...0.111 slugs. If you know your arrow's weight (in grains) and your arrow's speed (Feet Per Second), then you can use our Kinetic Energy and Momentum calculator above to find out each! Simply move the sliders or enter the values in the blanks. And, if you really want to take a deep dive into the Kinetic Energy of arrows, check out what the ...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 ...Apr 20, 2021 · The unofficial rule regarding minimum KE to push an arrow through a deer is about 40 foot-pounds. Lower-poundage bows are slower than higher-poundage models. So, let’s say the bow is pushing a 350-grain arrow at 265 feet per second. That setup is delivering roughly 54 foot-pounds of KE and .411 slugs of momentum. #2 · Jul 20, 2004. Will this set-up kill a deer with a well placed shot? Absolutely. Will yyou get a complete pass through? Doubtful. Most recommend at least 40 ft-lbs for a pass …

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Jun 25, 2006 ... What you have is a light 30-30 power level. You could use this load out to 110yd where your energy drops to 1,000 ft/lb, but not beyond. I ...Those elements are what is needed to calculate kinetic energy. For example, my bow fires a 400 grain arrow (broadhead included) at 305 feet per second. To find the kinetic energy, I multiply 305 by 305, then multiply by 400. I get 37,210,000. Divide that by 450,240 and the kinetic energy is 82.64 ft. lbs. I suggest using a calculator.Mar 3, 2019. Messages. 4. My total arrow weight with the 125gr. Broadhead weighs 428 gr. Our shots have been perfect broadside shots, but only punching through one side and not both. I have looking at the Full Metal Jacket 400 @ 10.2 GPI. Which would bring m up to 465g or go to to FMJ 340 @ 11.3GPI and be at 497gr.Here are the equations: Momentum = Mass x Velocity. Kinetic Energy = (1/2)Mass x Velocity^2. Notice that you can't have one without the other. Each is defined in terms of the same variables - Mass and Velocity. When the author of your book said that energy is not a factor in a kill, something got lost in translation.The critical factor to consider is the kinetic energy (foot-pounds) your bullet will strike the coyote with upon impact. For simplicity, I use the often suggested minimum of 10 ft/lb per pound to create a lethal hit on a coyote. In the United States, the average weight of a coyote is 30lbs. At 10 ft/lb per pound, that means you should use a ...placed. 2500 ft/lbs is recommended for animals weighing 1500 pounds and 4000 ft/lbs + for. dangerous game for obvious reasons. The main thing is to use a bullet at or above it's designed velocity and energy so as to get the. best performance from it under ALL hunting conditions. So to sum it up if you are hunting deer.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 / ...My pronghorn/mule deer arrow is an Easton HyperSpeed Pro branded with a .400 spine and a gpi of 7.4. Total arrow weight is 387.4 grains. My fps (feet-per-second) with this shaft is 296. When you crunch the numbers, I get a kinetic energy rating of 75.28 foot-pounds. I blow through pronghorn, mule deer and even elk with this arrow. ….

In addition to reaching the target, the bullet should also strike it with a certain amount of kinetic energy in order to “achieve the desired effect” – i.e. neutralizing a threat or humanely killing a deer, respectively. You want your bullet to hit a threat with at least 220 to 300 ft lbs of kinetic energy.The critical factor to consider is the kinetic energy (foot-pounds) your bullet will strike the coyote with upon impact. For simplicity, I use the often suggested minimum of 10 ft/lb per pound to create a lethal hit on a coyote. In the United States, the average weight of a coyote is 30lbs. At 10 ft/lb per pound, that means you should use a ...One other thing about comparing rifle cartridges to pistol cartridges, as far as ranges go, rifles usually carry way too much energy for their own good-what I mean by this is a .30-06 or a .300win mag can easily kill a deer at 1000yrds, but there are about 6 guys (non-military) in the world that could make that shot under hunting conditions ...(In the case of arrows, we then divide by 225,400. Why? I have no idea. But that’s how it’s done.) Kinetic energy (often referred to as KE) is the energy that an …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.Smaller calibers require great skill. When you increase the caliber size from .177 to .22, .25, .30, .357, .45 and upward, then the precision required for a humane kill decreases. There are some calibers that are very well suited for various types of game. The general rule in the airgun world has always been .177 for feathers and .22 for fur.The standard striking energy for deer hunting is typically known to be 1,000 foot-pounds. That energy is sufficient enough to ethically kill a deer. However, recognize that striking energy alone is not what kills the deer. The terminal ballistics of the projectile also affect how it behaves inside the deer and how the energy strikes the deer.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.KE. ME is KE at the Muzzle. Hence the whole "Muzzle Energy" name versus "Kinetic Energy." Posted: 12/8/2014 12:07:34 PM EDT [#10] Aside from the energy, remember that the .224" bullet is substantially longer, which will cut a wider path. ... 22 Win Mag will easily kill deer and hogs Inside 100 yards witha good broadside shot if that is what you ...At reasonable straight-wall cartridge hunting distances, for both velocity and trajectory, there is no real out-and-out winner between .450 Bushmaster vs .350 Legend. Both shed velocity like mad, the Legend losing 29-percent of its muzzle velocity at the 200-yard mark and the Bushmaster 31 percent—1,648 fps and 1,515 fps respectively. How much kinetic energy to kill a deer, 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..., What's the minimum amount of kinetic energy needed to kill a deer? Many states set minimum draw weight requirements for bowhunters to adhere to. But draw weight alone is not an indication of penetration power. There are other variables to consider, such as what arrow and broadheads are used and the distance of the shot., This small diameter carbon arrow provides great penetration and knockdown power for big game bowhunting. Sizes: 250, 350. 250 spine weighs 9.36 grains per inch, 350 spine weighs 10.32 grains per inch. Ultra strong PTX half-out insert made from high carbon steel and weighs 44 grains for increased FOC and kinetic energy., The critical factor to consider is the kinetic energy (foot-pounds) your bullet will strike the coyote with upon impact. For simplicity, I use the often suggested minimum of 10 ft/lb per pound to create a lethal hit on a coyote. In the United States, the average weight of a coyote is 30lbs. At 10 ft/lb per pound, that means you should use a ..., 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 bow used?, The formula used to calculate the kinetic energy (KE) of an object is: KE = 0.5 × m × v^2; Where KE is kinetic energy, m is the mass of the object, and v is the velocity of the object. Understanding Kinetic Energy: Before diving into the details of the kinetic energy calculator, it's essential to understand what kinetic energy is and how it ..., 400 solutions. ISBN: 9780328948550 (2 more) Prentice Hall. 421 solutions. 1 / 4. Find step-by-step Biology solutions and your answer to the following textbook question: The driver of a car slams on the brakes so that his car does not crash into a deer in the road. What happens to the thermal energy of the tires as the car skids to a stop?, Then .051/32 = .0016 slug. finally. .0016 x 280 = 0.448 s/fps momentum. Now, given broadheads of identical design, cutting width and sharpness, the combination with .500 slug-feet per second momentum will penetrate better than the faster but lighter combination at .448 slug-feet per second. If we had used the formula for kinetic energy, the ..., A 1 ms smack requires more acceleration to kill you than a 100 ms smack. Penetrating injuries to the head have a good chance of killing you. The army long used 58 ft-lbs as the energy of a projectile (bullet or fragment) needed to cause a casualty, but that just assumed a hit and not necessarily a hit to the head., For deer hunting with bows, it is recommended to have a kinetic energy level of at least 40 ft-lbs to ensure a clean and ethical kill. See 3,000+ New Gun Deals HERE. FAQs about Kinetic Energy Levels for Deer Hunting with Bows. 1. What is kinetic energy in bow hunting?, Energy . Force is a vector quantity while kinetic energy is a scalar quantity, calculated with the formula K = 0.5mv 2. In the second situation above, each car has kinetic energy K directly before the collision. At the end of the collision, both cars are at rest, and the total kinetic energy of the system is 0., The initial K.E. generated at the shot is 71.53 ft./lbs. (To determine how much initial kinetic energy your own bow-and-arrow set-up has at the shot, the formula is which is arrow weight (mass) x velocity squared, divided by 450,240.) Most experienced bear hunters I know believe that for averaged-sized bears taken at reasonable ranges—under ..., 500. Although the .44 Magnum offers a little less than half the punch of most popular deer rifles, it still provides enough energy to produce a clean kill on big game. When it comes to handgun rounds, it exceeds the muzzle energy supplied by others. It can also maintain over 500-foot pounds out to approximately 100 yards., 7.3 Work-Energy Theorem. (a) Calculate the force needed to bring a 950-kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with ..., B. During the collision, how much kinetic energy is converted. A 1000-kg car traveling east at 50 km/h passes over the top of a hill and hits a 2900-kg truck stalled in the middle of the lane. The impact causes the truck to roll eastward at 15 km/h. A. During the collision, how much kinetic energy is converted to internal energy in the Earth ..., A 1 ms smack requires more acceleration to kill you than a 100 ms smack. Penetrating injuries to the head have a good chance of killing you. The army long used 58 ft-lbs as the energy of a projectile (bullet or fragment) needed to cause a casualty, but that just assumed a hit and not necessarily a hit to the head., The 308 Win's .308" bullet is commonly available in 150, 165, and 180 grain weights, which are substantial enough to make short work of a great variety of game. In experienced hands it can hit a 1,000 yard target. Many have noted the 308 Win's shortcomings, often attributing a great deal of its popularity to mere tradition., Let's say you're shooting a heavier arrow that weighs 500 gr. That means it has about 64 ft-lbs of kinetic energy when it leaves the bow. During the flight, some of that energy will be lost to wind resistance. When the arrow makes the impact with the deer, all of the remaining energy is transferred to the razor sharp edges of the broadhead., Energy needed for a clean kill for some of the following animals and not all classified too many to list, just a few samples: 1) Deer & Black Bear 1000 lbs minimum striking force. 2) Elk & Medium game 1500 lbs minimum striking force. 3) Grizzly Bears 2100 lbs minimum striking force. This kinda goes with having a good well placed clean shot., The average deer weighs between 150 and 300 pounds so it takes a lot of force to kill one. Depending on the size of the deer it takes between 1.5 and 3.0 foot-pounds of energy to kill a deer. This means that it takes between 12 and 36 inches of penetration to kill a deer. How many Joules of energy are required to kill a deer?, A 12-kg sled is moving at a speed of 3.0 m/s. At which of the following speeds will the sled have twice as much kinetic energy? 4.2. Why is the gravitational potential energy of an object 1 meter above the moon's surface less than its potential energy 1 meter above Earth's surface? The moon's acceleration due to gravity is less., Feb 20, 2024 · For deer hunting, it is recommended to have a minimum of 1000 ft-lbs of kinetic energy to ensure a clean and ethical kill. 1. Is kinetic energy important in hunting? Yes, kinetic energy is crucial for hunting as it determines the stopping power and penetration of the bullet. 2. , Jun 25, 2006 ... What you have is a light 30-30 power level. You could use this load out to 110yd where your energy drops to 1,000 ft/lb, but not beyond. I ..., In today's bow world, many hunters are opting for lighter arrows to produce more speed. This is an advantage for taking medium-sized animals such as a pronghorn and white-tailed deer. However, elk present a larger, slower target. You need more kinetic energy - or knockdown power - than required for deer to bring a bull or cow elk to the ..., A car of mass m slides on frictionless ice with velocity 2v. it collides with a truck of mass 2m that slide on the same ice with velocity v directed in the opposite direction. The car and truck stick together after the collision. how much kinetic energy is lost in the collison? There are 3 steps to solve this one., Medium-sized game like deer, pronghorn, and sheep require an arrow with a kinetic energy range of 25-41 ft./lbs. When hunting large-sized game such as elk, black bear, and wild boar, it is recommended to have ammunition with a kinetic energy range of 42-65 ft./lbs., 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., Some would call any problems death from infection or starvation cruel. Others may even call it or even a clean kill justice. It all depends on perception & truths which we won't get into. I'd personally want a custom .257, RAW .30 or .357 A .22-250 would be great & be sure to kill anything I mean to out to 400 yards with a good range finder., What Is Kinetic Energy? Kinetic energy is the energy of mass in motion. The kinetic energy of an object is the energy it has because of its motion. In Newtonian (classical) mechanics, which ..., General Archery Discussion. KE for Deer hunting. 50-54 pounds. Votes: 24 18.8% 55-59 pounds. Votes: 10 7.8% 60-64 pounds. Votes: 22 17.2% 65-70 pounds. …, 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., Medium-sized game like deer, pronghorn, and sheep require an arrow with a kinetic energy range of 25-41 ft./lbs. When hunting large-sized game such as elk, black bear, and wild boar, it is recommended to have ammunition with a kinetic energy range of 42-65 ft./lbs., Jul 5, 2021 ... Comments9 · Arrow Flight with Broadheads - The Science of Bowhunting · The Truth about Kinetic Energy and Momentum for Deer Hunting · What Matt...