Residual energy

[gunslinger]

Does anyone know how much energy would be left in say an average .177 pellet at 100yds.

I would have thought that even making a hole in the paper target at that would be difficult.

This question is because I have recently become interested in long range target shooting but would like a bit more info.

ATB
GS

[Adam77K]

Chairgun says nearly 4 ft.lbs shooting an 8.4 JSB exact (BC 0.0220) at 12 ft.lbs so yes it will penetrate a paper target.

Interesting how quickly it tails off from the muzzle though. If launched at 12 it's got about 10.75 at 10 yds.

[redrooster]

What range for 6ft/b then! as i have been told it takes that amount of power for a kill!!!! pending quarry

[sniperman]

It depends of the pellet type you use.
You need to try pellets to see the type that is best for your gun(best bc and accuracy).
Dont expect more than 2,5-3 flb at 100 yard even with the best pellet.
And the trajectory would be like the one of a mortar s:p

[Davey K]

What range for 6ft/b then! as i have been told it takes that amount of power for a kill!!!! pending quarry


If placed in EXACTLY the right place - legal limit air rifles are not intended for long range hunting. 50 yards is the accepted absolute maximum with a top of the range PCP off a bi-pod on a perfect day.

If you need to shoot small vermin at ranges beyond this then you have a valid reason to apply for a FAC for .22 lr or .17 hmr or FAC air. A legal limit air rifle is not the tool for the job.

[redrooster]

I have done headshots at pigeons at 50 metres and killed them. At 12ft/b
I wouldn't even consider a rabbit.
my question was only for info reasons
thanks for the reply;)

[Gwylan]

A .177 will penetrate one side of a tin can, (not a soft drinks can,) at 100 yards.

Gus

[gunslinger]

A .177 will penetrate one side of a tin can, (not a soft drinks can,) at 100 yards.

Gus

At 12fpe ??:confused::confused:

Links or evidence

I may be a bit cynical but this doesnt match my experience even at lesser distances.

GS

[Gwylan]

At 12fpe ??:confused::confused:

Links or evidence

I may be a bit cynical but this doesnt match my experience even at lesser distances.

GS

Tough.... you can take my word, or not..!:D

Gus

[gunslinger]

In that case it will be a not :p

Anyone can tell me anything but without some proof it has no credibilty.

100 yds at 12fpe making a hole in say a baked bean can. Sorry mate I'm not having that.

GS

[jayt]

Digressing slightly, article in this months airgunner says it takes only 0.75ft.lbs to drop a rabbit, may be able to push out to 130+ yds then chaps:eek:

[mick hat]

Digressing slightly, article in this months airgunner says it takes only 0.75ft.lbs to drop a rabbit, may be able to push out to 130+ yds then chaps:eek:



.75 to drop a rabbit, if i flick its ear id give it more than .75!!! lol

[gunslinger]

As with the tin can, I dont believe it.
Unless you count a fluke shot through the eye into the brain.

Jesus we will be hunting with a gat next:rolleyes::D

That was in Airgunner in what context??

GS

[jayt]

As with the tin can, I dont believe it.
Unless you count a fluke shot through the eye into the brain.

Jesus we will be hunting with a gat next:rolleyes::D

That was in Airgunner in what context??

GS

page 47 of the march edition, a 3 page spread on pellet peformance, in the h&n pointed paragraph.

[sniperman]

~210 fps with an 8grain pellet = .75f/libs
My fun pistol(rohm twinmaster co2 ) shoots almost twice faster than that and it can't penetrate a tin can at 10 meters, a rabbit at 2 meters maybe it can be killed but i haven't tried.


With .75 libs the rabbit will probably just be scared to death :D:D

[gunslinger]

So it sounds like some serious BS being spouted by one of our monthlys.:rolleyes:

The reason I originally posted this thread was because of a claim on another forum that a pellet fired from a 12fpe rifle retains sufficient energy to kill a rabbit at 100yds.

I do not with the exception of the afforementioned absolute fluke shot believe this,and put the point that the claim was wrong.

IMHO it was at best misguided and at its worst irresponsible.

However I dont have any figures or stats to back this up.

Now there seems to be some conflicting information from members and far worse from Airgunner (although I have not seen the article).

I do realise that this is longe range target shooting which is why I asked the question in its original form,however it seems to have naturally veered towards the rabbit question.

GS

[Adam77K]

Post #2? :p

With JSBs shot from my HW100, Chairgun2 is accurate to 2 clicks at 50 yds so I think it's safe to assume it's accurate enough that if it says 3.84 ft.lbs at 100yds with same pellet at 801fps then it must be at least 3.5.

Penetrate one side of a can? Well depends on the can, the pellet, and the angle of impact, but I'd say it would have the energy.

[Davey K]

First a proviso, because I think we have to be very careful here in terms of how we represent ourselves.

This thread amounts to a THEORETICAL discussion between experienced air gunners who have an interest in the fine details of what can be achieved at extreme range. However, there are always those misguided individuals who will see this sort of a discussion as an vindication or justification for unethical shooting practises. That's why this section is intended only for the discussion of long range target shooting. Having said that there is some mis-information being bandied around on the thread so I'm going to present some "facts" as they have been explained to me.

Chairgun says that a JSB exact in .177 fired at 11.833 ft lbs will retain 3.79 ft lbs at 100 yards. I've heard a figure of 3.5 ft lbs most often quoted as the power needed to penetrate a rabbit skull. So, THEORETICALLY there is enough power to kill but in the realm of theoretical discussion is where this one should remain.

Now the soup can. I've got a measured 100 yards that I use on fine days for a bit of long range target shooting. Unfortunately I couldn't find a soup can so I used an old JSB pellet tin, sealed up and taped onto a sturdy wooden board.

http://i215.photobucket.com/albums/cc262/daveykenners/tin001.jpg

http://i215.photobucket.com/albums/cc262/daveykenners/tin002.jpg

I hit it 3 times, one shot hit the top of the tin and crushed it and the other two hit centrally and penetrated well. As you can see, they left a good dent in the other part of the tin but were not able to penetrate further due to this part being taped to the board. Not sure if they would have got right through, I'll try and do it again.

Not sure what you can take from this other than the fact that there is still enough energy retained to make 100 yard target shooting with 12 ft lb feasible on very still days.

[gunslinger]

Thanks thats some interesting info.
At risk of seeming pedantic, in the case of the can "not a drinks can" I would have thought the claimant was referring to a Baked bean,soup or suchlike and its on that that I based my judgement.The pellet tin being not much thicker than a drinks can.

IMHO the possibility of killing a rabbit at that distance depends on a lot of other factors as well as the RE,but it seems on that particular point I may have been mistaken.

It is not something I would attempt or advise anyone else to try, the hunters on here I think would all agree that we have a responsibility to our quarry,to be as accurate,quick and stress free in the kill as possible.

I have another question relevant but I will move it to "Airgun related" as I appreciate this section is for target shooters.


GS

[Davey K]

Thanks thats some interesting info.
At risk of seeming pedantic, in the case of the can "not a drinks can" I would have thought the claimant was referring to a Baked bean,soup or suchlike and its on that that I based my judgement.The pellet tin being not much thicker than a drinks can.

IMHO the possibility of killing a rabbit at that distance depends on a lot of other factors as well as the RE,but it seems on that particular point I may have been mistaken.

It is not something I would attempt or advise anyone else to try, the hunters on here I think would all agree that we have a responsibility to our quarry,to be as accurate,quick and stress free in the kill as possible.

I have another question relevant but I will move it to "Airgun related" as I appreciate this section is for target shooters.


GS

I'd say you're right that a soup can is made of thicker metal than a pellet tin but a pellet tin is definitely thicker metal than a drinks can.

In any case, I agree with you that tin cans or paper are all that should be being shot at with an air rifle at 100 yards - if you want 100 yard rabbits get a .17 HMR - that'll go through a soup can and then some!!:D

[Gwylan]

In that case it will be a not :p

Anyone can tell me anything but without some proof it has no credibilty.

100 yds at 12fpe making a hole in say a baked bean can. Sorry mate I'm not having that.

GS

Just revisited this thread to see if top shot, (I think I mean "shot,") gunslinger, has managed to hit a tin can at 100 yards. If so, he would have seen a hole in it. As he lives in Exeter, he is welcome to pop down to Dartmoor Marksmen FTC on a Sunday morning, and I will show him how its done. PM me for a map.

Gus