If you swing fast enough, you too can cut bullets.

[Claidheamh]

Ok everyone, start working on that suburi. Just goes to show, maybe there is some truth in the movies.... Uhoh, Im giving those Ninja nuts some ammo. No pun intended.

45 ACP Fired at Katana (http://www.arniesairsoft.co.uk/news/may04/peq2/04050501.avi)

[Mr.Tvola]

wow :beard:

[Bleda]

Its simple metallurgy, they fired a soft lead projectile at hardened steel, even a well made knife would have cut it easily. Just be aware though, instead of 1 chunk of metal flying at you, you have 2 chunks of metal hitting you instead lol.

[Claidheamh]

Notice they did not show us the edge afterward. I would immagine they used a lead wad cutter, no jacket. However, I still wonder what the edge looks like.
There is the possibility that the second piece was a piece of the blade if the bullet did not hit the edge, but hit the shinogi instead.

[slidercrank]

As the pistol is a M1911, the bullet fired is most likely jacketed.

[darkluc3]

hmmm did you see something ?? i just hear them talking and some strange noises later :) (just like a mp3 file)

[Hitokiri]

@darkluc3: mmm, yes it works with windows media player... :wink:
btw, happy birthday :D

@all:
Yeah, it isn't really clear what the second piece hitting this paper-wall was, but I don't think that it was a piece of the blade. Imo, if the blade had been damaged, wouldn't it have splintered completely?

@slidercrank:
Well, the question is, has it to be jacketed? Or could they have used some kind of "softer" ammunition?

@Bleda: hehe, yes, the idea of cutting the bullet into two pieces like in this video isn't that desirable, especially if the two pieces flying away would still hit your body :ko: :wink:

[mystic_kendoka]

instead of 1 chunk of metal flying at you, you have 2 chunks of metal hitting you instead lol.
i would rather lose my ears than my forehead.,.

[mystic_kendoka]

wait.... the website is www.arniesairsoft.co.uk... isnt airsoft the same as BB guns? maybe it was a BB they shot, which wld explain why they used paper for the background, but doesn explain what the recoil was about...

[Zaphiel]

ai caramba!!!!:devious: :smiley:

[mystic_kendoka]

can anyone that speaks japanese please tell the rest, wether they mention that it is a real gun or not?

[misterkurukuru]

This is from a Japanese trivia show. It’s the one whit TAMORI and MEGUMI and they press the button that makes a “heee” sound. More then the katana thing, there was a funny performance of a song titled 4’33’’. Anyways they said a colt 45 was used to shoot the katana from a distance that the bullet wouldn’t slow down. The gun shop owner guy wanted to try again afterwards. There is no way to prove if it was legitimate. They also did a kendo vs fencing thing on this show, and fencing beat kendo….that was not done well. Did you know that kabuto mushi pee with one leg up?? “heeeeeeeeeee”

[Bleda]

Both pieces were halves of the bullets, not pieces of the blade. Even a jacketed bullet has the tip exposed and is surrounded by a think case of coper on the sides and rear, its still easy to cut with a good sword. The bullet really wouldn't cause that much damage to the blade aslong as it was hit at a good angle and all the force was absorbed by the spine as in this video. As a reference i've seen blades smashed into anvils at poor angles and thats much more stress than a clean cut of soft lead.

[Arnold Strong]

wait.... the website is www.arniesairsoft.co.uk (http://www.arniesairsoft.co.uk/)... isnt airsoft the same as BB guns? maybe it was a BB they shot, which wld explain why they used paper for the background, but doesn explain what the recoil was about...Airsofts, by law, have an orange tip at the end of the barrell. This one didn't.

[mystic_kendoka]

thats only in the US and canada, not in Japan, and the rest of europe, but i don't think its a BB after all.. because there was too much recoil even for a gas gun, and nothing explains the discharge...

[Hiryu]

Both pieces were halves of the bullets, not pieces of the blade. Even a jacketed bullet has the tip exposed and is surrounded by a think case of coper on the sides and rear, its still easy to cut with a good sword. The bullet really wouldn't cause that much damage to the blade aslong as it was hit at a good angle and all the force was absorbed by the spine as in this video. As a reference i've seen blades smashed into anvils at poor angles and thats much more stress than a clean cut of soft lead.
How can you state that both pieces "Were" halves of the bullet. You are stating that this is fact, you need to use a qualifyer here unless you were there and/or have information other than just watching this video. Years and years of martial arts usually trains someone that the more you know, the more you realize how little you know.
So your statement says that you know without a doubt that the bullet was cut in to two "Halves" meaning perfectly into two equal pieces. I highly doubt it.
Even if this was a wad cutter, it could chip the blade if, as you say, the angle is off some.

[Bleda]

How can you state that both pieces "Were" halves of the bullet. You are stating that this is fact, you need to use a qualifyer here unless you were there and/or have information other than just watching this video. Years and years of martial arts usually trains someone that the more you know, the more you realize how little you know.
So your statement says that you know without a doubt that the bullet was cut in to two "Halves" meaning perfectly into two equal pieces. I highly doubt it.
Even if this was a wad cutter, it could chip the blade if, as you say, the angle is off some.
Wow how anal you are. The term halves refers to being approximately 2 equal parts, a little less, or a little more. The qualifier is, if you watch the video frame by frame you will see that there was no chip off the blade, just 2 pieces of the bullets as it was split. They took great care for the angle NOT to be off and also used soft lead bullets meaning the chances of blade damage were very very small. This is less about kendo and iai and all about metallurgy, so sorry JSA training does not make you an expert on metallurgy.

You need to stop being so anal though, seriously. You're one of those guys who yells at everyone else during practice and "corrects" them instead of fixing your own mistakes aren't you?

[briaeros007]

hello;
I am not an expert of any sort but
a bullet spin so it isn't a simple collision since there are a rotation movements. In this way the second part could be a little part of the edge and the first will be the bullet wich is deviate by the sword.

It's not to say that they aren't professional but the shooter aren't use to shoot visibly (again i am not an expert) since he close his eyes when he shoot.

the mark on the panel show that the two projectiles aren't of the same size! the right hole is bigger than the left one.

for the story when "we" do test ; "we" use sand or water (above a tank) so we can collect the bullet to do some test after fire them.
we can't see if the edge have a scratch ;it's very pobable since for a .45 the energy at the muzzle is between 450 and 500 J (an airsoft is between 0.05 and 1j) for a velocity of 200-250 m/s
i don't know the technical caracteristic of a 1911 but i think we can assume the bullet can do a quarter of spin in the length of the blade.

all this to say that the blade is intact seem to me; with a "normal" bullet (an hp) ; unrealistic.

if we don't know the bullet we can say anything :
if they use quick silver it's logic that the bullet is separate; since quicksilver is more known as an explosive ammunition
if they use plastic bullet(low velocity for aircraft) idem
but if they use some hv (high velociy) i think that the blade will not be here (it's a bullet which have a body of plastic and a core of tungsten carbure; when the bullet collide; the plastic body stay with the object; and the core penetrate...)
if the gun isn't very well centered ; the bullet can only rip off the blade and with the spin project a part of the edge

I think i have recapitulate all ideas no?

sorry for my bad english

[Bleda]

If it was the edge of the sword from the rotation of the bullet it would be embedded in the middle of the bullet or at the very least flung towards the same side the bullet went. The only way the edge could fly off in the opposite direction would be in the case of a ricochet of the bullet off the edge of the sword. The 1911 fires jacketed (or unjacketed) soft lead bullets. Lead is a very easy material to cut, particuarly small pieces such as a bullet.

If you go back and look at the video in slow motion you will see that the sword did not take any chips from the bullet.

[briaeros007]

my english is too bad :(
hypothesis : the little strike was a part of the edge and the big was the bullet
if the bullet aren't perfectly centered but was shoot a little on the right ; and if the bullet didn't fragment itself; so in the collision a little part of the edge can fly (i have this probleme with my paul chen :((( i touch a soft metal i didn't see but only a little part of the edge have been rip off ; if we didn't look it too precisely (or if we look with a bad angle of vision) we see nothing.
It can be the same thing here : the bullet collide with the blade; a little part of the edge is rip off; as the bullet isn't perfectly centered : the rotation of the bullet project the part to a side; and the bullet wich has collide; finish it race as it can (like a car which only touche a pylon : on side is stop by the pylon but not the other ; so it began a rotation )

you say that lead is particulay easy to cut. I would take the example of the water : water is easy to cut. But if water go out with high pression (high speed); you can pierce some ceramic armor! it's depend on the energy/speed.
a .45 transport more than 450 j !

with the friction the temperature must exceed 100° which isn't very good for the mechanical caracteristic of the blade.

if there are 10% of the energy wich is given to the blade
I think that the blade don't move much for 45j; so the blade is very rigid But in this case; it would be broken , wouldn't it?


i have done the video frame by frame and we can observe that the two fragment aren't on the same level ! they will if the bullet will be cut perfectly , isn't it?
the hole are 7*5 pixels and 16*10 pixels
one is about 2 times bigger than the other.
the length of the blade is about 280 pixels (the length is measure from the wood to the kisseki)
if the length of the blade is 50 cm the "big" hole have a size of 2.8*1.75 cm and the other 1.25*.9 cm
a .45 have a diamater of 11.43 mm ,haven't they?

in this way ; as we didn't know how the experiments was done , and how result are polemic : i think there are some special effect of equivalent tricks on this video:example
two little explosive to make the hole; a blank ammunition ; and we transmet vibration directly to the blade below the table ;)

In addition i want the same vice (it was this word?) to arrange : if ; with the moment(couple of forces); it can take an impact of a .45 ...

[Hiryu]

Wow how anal you are. The term halves refers to being approximately 2 equal parts, a little less, or a little more. The qualifier is, if you watch the video frame by frame you will see that there was no chip off the blade, just 2 pieces of the bullets as it was split. They took great care for the angle NOT to be off and also used soft lead bullets meaning the chances of blade damage were very very small. This is less about kendo and iai and all about metallurgy, so sorry JSA training does not make you an expert on metallurgy.

You need to stop being so anal though, seriously. You're one of those guys who yells at everyone else during practice and "corrects" them instead of fixing your own mistakes aren't you?

ANd it appears that your the type of student that insists your doing everything correct, and you know better despite consistent corrections.
Hey, does analretentive have a hyphen?

The video is not clear enough to tell me that the sword has not been chipped, there is also insufficient reflection off of the edge to say it was not chipped, (In my opinion.)

[misterkurukuru]

You’re not your! HAHAHAHAHAHAHAHA! Dude just drop it, this show is pretty much all in jest people. Who the FAQ cares if the bullet was cut exactly in half anyway? It’s not like someone actually did men and cut the bullet: that would have been impressive! The gun shop owner just aimed at the sword and fired. It’s a freaking quiz show that rewards the trivia that was sent in with a golden brain that is a melon pan holder “hai irashaiiiiiii!!!!” and second place gets a smaller silver brain FYI 3 silver brains can be traded in for the golden brain!

[mystic_kendoka]

i will try cutting a bullet... if i do not make any more posts, i want my account deleted, and i demand someone make a thread praising my courage... (i am not serious)

[Hiryu]

You’re not your! HAHAHAHAHAHAHAHA! Dude just drop it, this show is pretty much all in jest people. Who the FAQ cares if the bullet was cut exactly in half anyway? It’s not like someone actually did men and cut the bullet: that would have been impressive! The gun shop owner just aimed at the sword and fired. It’s a freaking quiz show that rewards the trivia that was sent in with a golden brain that is a melon pan holder “hai irashaiiiiiii!!!!” and second place gets a smaller silver brain FYI 3 silver brains can be traded in for the golden brain!

Ok okay, K, I got my spellin corrected, you damn correct socal kendo people! Yaknow!