How to Hunt with a Rifle : Rifle Bullet Trajectory

[ChrisPenta]

@toranamunter Knowing definitions and terminology and being able to drop a deer at 600 yards are two VERY different things. I'm sure he's more adept at shooting a rifle than your average Joe, but yeah, you get better results with people if you know the terminology.

[toranamunter]

@ChrisPenta agreed :-) I'm sure the guy is a far better hunter than I am. Expertvillage just seem to put out hundreds of slightly inaccurate, not quite right, not quite expert videos :-)

[fvottoh]

The guy looks like he is Montana.

[danoman42]

No it just means that gravity has more time to apply force on the bullet it does fall at the same rate.

[scienceandmusiclover]

If a typical 30 caliber, 180 grain bullet could be stabilized so as to fall point first from rest vertically; it would have a terminal velocity of about 450 FPS and 78 foot pounds of energy. It would be very dangerous. If a bullet were shot for maximum range, it would hit even harder. If the bullet tumbled, it would still be dangerous. I am not being a safety instructor, just simply pointing out something many do not realize.

[scienceandmusiclover]

If two objects of identical shape are dropped in the atmosphere of earth, the larger one will eventually overtake the smaller one. This is because the wind force up increases with the square of the diameter, but the weight increases with the cube.

For example, if dropping a lead sphere (Cd=0.43) of 25 caliber, terminal V will be about 140 FPS. If it was 50 caliber, terminal V = 196 FPS. This makes it appear a lighter bullet would drop less, but incorrect because it's X speed falls faster.

[scienceandmusiclover]

(Pt 2) Initial V wind drag might be more than 20 times the weight of the bullet and changes constantly. The flight will not be a simple "vacuum" parabola. The physics is very complicated, not just a classical assumption. The angle for max range will usually be much less than 45 degrees. In some cases the spin will slow down and the bullet may eventually tumble, increasing drag. Long range North/South shots are very, very slightly perturbed by the earth’s rotation. (Pt 2)

[scienceandmusiclover]

Wind drag is given by 0.5*p*Cd*V*V*A, where p=.002378 @ sea level, Cd is a coefficient, V= bullet speed (not velocity), & A =area (Sq Ft). Cd varies with V & is highest a little over mach 1. It takes a computer to solve the differential equation. I have done so and hit small targets at long ranges. One can approximate short range drop by assuming a vacuum drop, but drop time depends on average X velocity; therefore, if ALL else equal (including initial V) a lighter bullet drops more. (Pt 1)

[JuggaCarl]

now someone tell him how to hunt, you do not hunt going er er and stuttering like a peice of shit, and you d not hunt in a black n blue sweater, with a brightly coloured hat, retard

[VikingRaider]

What a mumbling moron: send him for a time-out.

[pokerguy17]

Haha, uhhh if the crosshairs on right on your head lol By the way, all bullets reach a terminal velocity when falling, because of air resistance.

[kcalbraeb]

MISFITS, Where do you find these hunters to make these videos hahahaha that had nothing to do with acuracy..god help me!

[Thatkid5465]

ok people settle down if you know so much about the topic go make a video...obviously he doesn't know what he is talkiong about..so what..your wasting your time everyone know he has made some mistakes and over half the people who have commented have commented about how he is wrong so you don't have to say the same thing that has been said 300 times...get a life

[jitzero]

lol he does care what he says.... he just cares about how big his barrel is

[tjwappraiser]

Amateur hour attempt at imparting "knowledge".

and to think people are watching this video in an attempt to learn something. Pretty scary

[TeamXS7]

Is that a Reminigton 700? I think it is by the look of the style :) Aye guys just wondering you can only shot the max of a .22cal rifle in Australia so I am just wondering what is the best rifle and bullets can I get in Australia what is a .22?

[mirkthirteen]

@TeamXS7 what gave u that idea only a .22 ive been shooting .308's etc im in Sydney lol we can buy bloody .50 cals goddamit. Lol i think u need to do some research waht made u think only .22???

[TeamXS7]

@mirkthirteen I sadly live in South Australia... And no I can't shot .308s UNLESS I join some special group or something. Plus the shooting range is only 50metres long so really you don't need more than a .22 rifle. Also I don't feel like paying like $5,000+ For something I only use in the Holidays :)

[mirkthirteen]

@TeamXS7 o ok fair enough, so onyl a smallbore range then? surely the SSAA would have facilities etc for fullbore shooting. Plus if u have a look around u can get a really good .308 for just above a $1000 so there not that expensive. Look up the SSAA u might find some fullbore stuff in SA.

[toranamunter]

@mirkthirteen you need to go to new zealand, they haven't banned guns there like Australia

[mirkthirteen]

@toranamunter they havent banned guns in australia though, only automatics, theres just strict rules on getting them here thats all, ive already got my own.

[CrimsonOmen407]

@mirkthirteen he was saying that anything over a .22 was unnecessary in a 50 meter range

[MacInDaPants]

cuz im really going to take advice from expert village.

: /

and i thought they only had bad recipes.

[mrsmelzbad]

get a 22 & 5000 rnds ..start shooting youll figure it out.

[vj9911k11]

What da fr**&^%%^&K you talking, grow up

[bmbheat24]

In games if they are realistic you have to shoot above your target because at that range the correlation effect comes into account and you have to aim above or below your target to hit them if they are far away. Even if the wind is blowing your bullet will get blown off course so you have to take into account windspeed and direction. Alright just check out 1 shot 1 kill on call of duty its a realistic sniper shot with the Barret M82 sniper rifle.

[reinder666]

@bmbheat24 Play sniper elite, that takes allmost everything into acount.

[Brotherymoses]

i UH.. hate UH... this UH... video UHHHHHHHHHHHHHHHHHHHHHHHHHHHHH­HHHHHHHHHHHHHHHHHHH...........­.....

[cnknguyen]

ive noticed that 99.2% of the idiots on this "Expert Village" channel are completely clueless and need a nice cold glass of SHUT THE FUCK UP...

[fixdeluxe1]

@cnknguyen Wow,well why don't you make the instructional videos then,I'm sure they would say the same about you.

Nobody cares about your single opinion,your not an all-intelligent god so go and stuff your ego up your ass.These people are trying to give advice for free which takes time and effort.Your just another loser with another opinion out there.

[babyeatsdingos]

Things of a given size and volume fall at the same rate. Fire a gun at a height of 5 feet and drop a pencil from the same height at the same time and both will hit the ground at the same time.

Speed of bullet affects how far the bullet goes, not how fast it falls.

[boredomblows]

i cant even pay attention to what hes saying with all the "uhs"... probably a good thing?

[roxasdagamer]

what not to do with fire arms:

make a homemade bullet with duct tape

c4

match heads

[rewtguy]

bullets fall at different rates? I guess this guy didn't study physics.

[sirhcskoorb]

........uh

[killsanta2]

uuuhh i miss this shot uuuhh XD

[slimthugga34]

FUK! all i heard was uhh

[TuPP3]

Uhh, he sounds uhh... Professional...

[accjr77]

Make this world a favor, sholve it up your ass!

[steelstrings1312]

i counted uhh... 27 but i may have missed...uhh.. a couple uh's.

[minorpayne23]

he has a rate of 0.3493975 uhs per second

[minorpayne23]

i counted 29  uhhss

[raidermike2005]

uh wha?

[x3Eruption]

is that a r700 or a m40?

[lylix123]

R700

[erik1822]

26 aahhhh but it can be more

[choochooherecomes]

no matter how heavy something isdon't they all fall at the same rate? So the size and weight of a bullet shouldnt count

[timtico]

yes that is right, but if there is more powder behind the bullet it will have a higher speed and therefore it will cover more distance while dropping

[jeffxu1234567890]

Heavier bullets drop faster cos they have less speed

[choochooherecomes]

I watched a programe when they fired a bullet and droped a bullet at the same height and they both hit thefloor at the same time

[MrFrogfish]

MYTHBUSTERS !!!!

[choochooherecomes]

YEAH!!!

[muddwell]

theoretically they're going to fall with an acceleration of 9.8m/s2, but air resistance slows things down. how an object is affected by air resistance depends on its shape and mass. if you really care.

[mRw1ReL3Ss]

OMG a R700!!!! I love this weapon!!!

[anonimation1234]

HERP DERP HURR DURR HIPPIDEY DERP DURR HURR

Regardless of mass objects will fall at the same rate you uneducated fucking whitenigger

[tklmkan]

i think what he means is the ability to retain momentum drops as the weight decreases, so lighter bullets will drop sooner than heavier bullets at the same velocity.

[anonimation1234]

THINGS FALL AT THE SAME RATE REGARDLESS OF VELOCITY (Assuming that they are of the same size(Air resistance and all that)) MASS DOES NOT HAVE AN EFFECT ON GRAVITATIONAL ACCELERATION!!!

A lighter bullet may lose its horizontal velocity faster but all bullets (and anything else for that matter) Will accelerate downwards at the rate of 9.81MS^-2 regardless of mass or horizontal velocity

[tklmkan]

thats exactly what im trying to say... the lighter bullets drop at a shorter distance than the heavier ones.

[338dmac]

Yes, the same rate UNTIL they reach their respective terminal velocities, but this isn't free-falling we're talking about here so that doesn't matter. Heavier bullets begin to noticeably drop earlier than the lighter ones, but also more gradually, so they stay higher in the long run due to more mass/energy. Lighter ones don't drop as much earlier on, but past a certain range they will drop faster than the heavier ones because they have less mass/energy. Do you shoot rifles at distance?

[toranamunter]

a 130gr and a 190gr bullet will fall at the same vertical rate actually. Back to school for you, go read your physics book again.

[coverisk]

@toranamunter 130gr is not the weight of the bullet, but the amount of powder that the bullet have, if it has gunpowder the bullet will fall faster

im not sure, but i think thats what he meant

[toranamunter]

@coverisk ah, no. Unless thats a .500 nitro express he's holding (it isn't..) I guarantee the cartridge will not even hold 130 grains of powder. Why are you even arguing about this? go ask a 14 year old physics student - which falls to the ground faster, a heavy bullet or a light bullet? They all fall at the same rate. The fact that the guy in the video states otherwise tells me he knows absolutely fuck all about ballistics, and isn't qualified to be making instructional videos.

[sirwestiethe7th]

@toranamunter i like how nobody realizes that highschool physics books give nearly all of their examples in theoretical environments where air resistance is not present. i have seen this "go read your physics book" comment like 17 times now. air resistance occurs because whatever is moving is colliding with billions of air molecules and transferring energy to the particles.

gravity pulls the bullet down. there is air below the bullet, so the same concept applies. the more you know...

[Madnessin1987]

@toranamunter ever herd of wind resistance dumbass throw a wiffle ball then throw a baseball go back to school and read your physics book again

[CrimsonOmen407]

@Madnessin1987 that example has nothing to do with wind resistance, thats mass and trajectory (unless your thinking of the wiffle balls open holes, but that doenst effect much)



[bhbuckwheat]

@toranamunter they drop the same ammount over the same period of time not over the same distance. you have to factor in velocity. a 308 win 150 grain bullet will drop 54 inches at 500 yards while a 150 grain 300 rem ultra mag will only drop 25 inches.

so may be you need to go back to school

[wildwill1970]

@bhbuckwheat So you've said it yourself. Really the weight has nothing to do with bullet drop. It's velocity that matters. I'm not really sure why people even debate this. Weight has nothing to do with how fast something falls. If anything at all, weight will make something go further due to mass velocity. Size, or I would say Aerodynamics, do factor into this as well. So you could say a big, and maybe heavy, bullet will drop faster. It is not dropping faster due to weight though.

[e115x525]

@toranamunter well true and not true, a heavier bullet will move slower, which is a main cause of bullet drop, because at longer ranges the bullet will slow down and have more air resistance. but velocity and projectile weight arent the only things you need to factor in long range shooting.

[salpen747]

@toranamunter yes two objects of the same weight fall at the same rate that is a fact what does not say is that the reason a smaller bullet falls faster is because it does not have the kinetic energy to carry it that far they fall at the same rate the difference is which one has the mass to keep its momentum up against the air its pushing against so yes you are right but in a technical way and also the reason these guys did not have a good video is because there was no clarification

[nathanomgnathan]

@toranamunter dude, a 130 gr and a 190 have different weights, but they have the same powder behind them, so a 190 will go slower, and therefore fall faster, back to the physics book for you ;)

[raidermike2005]

@nathanomgnathan Do you handload? I do, and I know that larger bullets ALWAYS have less powder!  Just FYI. Check out any handloading book for yourself.

[nathanomgnathan]

@raidermike2005 is that cuz they take up more space in the cartridge?

[raidermike2005]

@nathanomgnathan Not only that, but mostly it has to do with pressure inside the barrel. Imagine lifting a loaf of bread. Didn't take much effort. Now imagine lifting a gallon of milk. That took more effort. So in order to push a heavier bullet it takes more effort. This extra effort causes more pressure. In order not to exceed the SAAMI pressure specs, you need to back off the amount of powder. Thus the bullet at the muzzle is slower AND heavier thus the trajectory completely different.

[nathanomgnathan]

@raidermike2005 oh cool, i never even knew that. Thanks lol

[ChrisPenta]

@toranamunter False. Over a given distance, a bullet of a higher BC (ballistic coefficient) will fall less. A heavier bullet retains its velocity longer, and thus, drops less.

[toranamunter]

@ChrisPenta Read my comment again. I said "vertical rate". That means vertical distance fallen per unit of time. i.e the same for heavy or light bullets, no matter what speed they're flying at. To be extra clear on this... I'm talking about "rate" which to me means, per unit time. Not distance. So the bullet speed is completely irrelevant, it's 9.8m/s^2 and that's about it really, bullet weight, irrelevant, bullet forward velocity - also irrelevant.

[DI3ZUL]

uhh i dont really uhh know what the uhhh fuck im talking about.. uhhhh yea

[JimTL1000R]

uhhh well uhhh ...uhhhh, shit uuuhh i do it even uhhh when i type. uhhh, ok.

[dylan15683]

uhhh uhhh uhhh uhhh..lmao thats all he says

[Blackops981]

lol i got that problem too!

[greecelincoln]

"if the bullet is at 500 yards the bullet may drop 27 inches hypothetically speaking", well since when can you hypothetically aim at an animal and kill it.

[RetartedPikachu]

sprky777 it matters on what type of bullet you are using there diffrent in the how much of powder inside of them

[kane110018]

i got tips for hunting 1 hold the trigger when u shoot the bullet

2 where a gillie suit u can use them in hunting as well

3 be patient.

[RAINF911]

i don't know how far out of frame the muzzle was but that barrel looked longer than usual ... please correct me if im wrong....

[secallo28]

its either that, or thats a kid gun and hes a midget

[elvensbane]

nice rile.

[NBison100]

inch & a half below where the cross hairs are sited

[sprky777]

if sighted at 200 yards, the bullet will be below the crosshair from 0-50 yards, above the crosshairs at distances from 50 yards to the 200 yard zero and after 200 the bullet will again drop below the crosshair.

[Kenzofeis]

As soon as the projectile leaves the muzzle it starts freefalling toward the ground, but, at the same time it has a rapidly falling velocity forward relative to the ground (f.ex. horizontally), so vector thinking is needed..

But, nothing holding the projectile up, it will fall towards the earth at ~1G acceleration.. this is why the trajectory is curving more and more toward the earth.

Complicated?

[BobWhisley]

POOR !!! / PEESSIMO !!! /

RIDICULO

[wally6689]

dude that one long barrel, what length is your barrel and is this a custom rifle? cheers

[t2thei]

special hunting-barrel i guess!

[Clearwater701]

man, the ppl that post comments on here dont know shit. You are a bunch of know nothing water head retards. Basic ballistics are not that hard to comprehend.

[1992jamo]

unlike 'Its going to go fall faster after 200 yards'

LOL

[gscratch]

Technically - a bullet will fall faster, the farther down range it is. It's acceleration is constant (due to gravity), but the bullets velocity in the downward direction is a function of time. At 200 yards, it will fall faster than it did at 100 yards. Physics is fun.

[1992jamo]

by the TINEST amount :P meh..both hit the ground at the same time.

[23rdMarineCommandos]

Correct, little time passes by in the time it takes bullet travelling 2000 yards/second to cover a distance of 100 yards.

[9pol1]

What caliber is that

[trombonedemon]

I wonder how long does the bullet travel in a straight line before it drops. Does the wind lift up or push down, does the fact its a hollow point affect it, are faster smaller bullets more effective? Hmm, bullets maybe tend to act like human beings, unpredictable!??!?!?!?

[chrisredfield3636]

ok the 5.56x45mm (m16 round) goes a hell of a lot more faster than the 7.62 (ak47 round) so if it goes faster it will do more damage! its the same for a 357 to a 44 since the 357 is smaller it will go faster and will there for do more damage and hollow points will mushroom when they hit and turn into a very sharp piece of metal ripping its way into the body but a soild bullet will pass right through the body that why in war they use solid bullets so its easer to heal from getting shot

[gscratch]

Chris -

1. Sorry, smaller does NOT equal faster. 

2. If your 5.56 and 7.62 have equivalent bullets (100 grain) at = equal V. (2300fps for example) they'll have = energy: 1.1744e+3 ft/lbs. Yeah. Same.

3. All rounds deform on impact. Hollow points mushroom smooth and uniform, Others (Barnes / Nosler) shred into an 'X' shape.

4. No, they don't use solid bullets so it's easier to 'heal'. [rolls eyes] In battle - better 1 dead, or 2 carrying wounded?

PS: Your profile? Spell check.

[23rdMarineCommandos]

The U.S military is actually considering replacing the M16 for a newer M4 which fires a larger bullet becuase they have come to the conclusion that in the wars being fought currently, the 5.56 bullet is simply not large enough to be completely lethal. They wish to upgrade to a bullet large enough to knock down an enemy with one shot, and yet maintain a high enough speed so that accuracy is not compromised. 5.56 rounds do not do more damage than 7.62 rounds, as they carry less momentum.

[gscratch]

23rdMarineCommandos: Are you familiar with the terminal ballistics of the miliitary rounds? Any idea who builds the bullet or in what configuration?

[gscratch]

1. Projectiles don't fly in a straight line. Gravity always works.

2. Wind 'could' alter rate of drop (+ or -) but it would have to be REALLY blowing. In reality it will affect (left to right), but never height.

3. All rounds have a 'ballistic coefficient' which determines how quickly they will lose speed traveling through the air. Hollows slow more quickly than a pointed tip.

4. Effectiveness is a combination of Mass, Velocity, bullet construction, and your definition of 'effective'.

[23rdMarineCommandos]

I am not sure if you are you agreeing with me or not. My previous comment is accurate; 7.62 bullets do more than the 5.56 aleternative within the standard range for confrontation in the British Army (usually around 400 metres) My comments concerning the replacement of the M16 are also accurate.

I do understand the physics of bullet trajectories so I am no need of further explanation.

[23rdMarineCommandos]

Until you have experienced what I am talking about, you must consider yourself ignorant to what the modern day soldier truly requires.

[gscratch]

Indeed I do - having been next to a close friend, recovering from a double amputation (Bi lateral transfemoral) as a result of a rocket laden corolla in Kandahar, Afghanistan. I would also not suggest myself ignorant, but interested in another perspective.

[gscratch]

Indeed I was agreeing with you :) I was curious about the military projectile configuration, in terms of terminal ballistics.

As hunters we have a number of choices, ranging from simple penetrating and passthrough ballistic varieties to 'varmint' bullets that fragment and disintegrate on contact.

I was curious more about the style or type used in military applications for typical infantry use.

[23rdMarineCommandos]

My definition of 'effective' is that a bullet carries enough kinetic energy so that it would cause any attacking enemy to fll due to the transfer of this energy. Gone are the days when the army would rather injure an attacker, requiring more men to aid him, rather than kill him. Now, in the days or car bombings and marters, the only way to ensure an attacker will not continue running towards you laiden with explosives is to stop him in his tracks.

[gscratch]

VERY well stated.

[Powelly00]

Also wether its a fast burning powder or slow burning powder.

[blastolean856]

Some where in Utah maybe.

[Aussie038]

Man that's a loooooong barrel. If you happen to miss at 500 yards you could probably hit them over the head with it - LOL

[trombonedemon]

LOFL, hahahahaha!!!!!!!!!!!!!

[soldierGB]

dont you just love north america, i mean look behind him!!!!!