Destructive Sword Test.... Machine Gun vs. Katana

BSMStar · 14th August 2006, 05:45 PM

This is a must see!

Watch to the conclusion... count how many 30 cal. round does it take to cut their way through a well made Katana.

Do not do this at home! I cry for the sword in the end... but it is amazing the punishment it takes before giving up the ghost (seven rounds).

http://www.youtube.com/watch?v=zBIBfzL8ULw

Thank you LabanTayo for guiding me to this link!!!!

katana · 14th August 2006, 06:17 PM

There is also this one......9mm against a Katana (the sword.......NOT ME

)

http://www.youtube.com/watch?v=pNiX_l-HEGM&NR

BSMStar · 14th August 2006, 06:40 PM

Quote:

Originally Posted by katana

There is also this one......9mm against a Katana (the sword.......NOT ME

)

Thanks Katana!!! Those "baca" Japanese...

I am not about to take my favorite sword and start punching rounds at it.... Interesting test for those who are not faint of heart.

katana · 14th August 2006, 07:32 PM

Its surprising how much punishment the katana's took. And as for a 9mm bullet being sliced in half ......seeing is believing.
I did a quick check on the velocity of an average 9 mm bullet...

The 9mm (which is offered in a much wider range of bullet weights and styles) is specced at 1150 fps and 340 ft-lbs energy with a 115-grain JHP bullet and 990 fps and 320 ft-lbs energy with heavier 147-grain JHP subsonic loads.

fps (feet per second)..... and I believe that ft-lbs converts into the weight in lbs spread on a square foot area.....340 ft-lbs ....that is some force

The Double D · 14th August 2006, 07:52 PM

Back in the days when I taught firearms to new police recruits all of use instructors would split bullets and break balloons. We used an axe blade and an old mauser bayonet. My particular favorite was turn the gun upside down and fire the gun with my little finger. The drill was to teach that all that was required to hit the target was proper sight alignment.

We fired 9mm ball, 38 Spl WC and JHP, 357 Magnum JHP and 45 ACP ball.

The axe and bayonet blade had been used for years before I arrived and was still there being used after I left a year or two later. No damage to the blades.

We did not however fire a 30 cal machine gun at the blades.

katana · 14th August 2006, 08:38 PM

Hi DD......guns are not my forte....never even fired live rounds...

Anyway....back to the thread.....Is there any data on the effective cutting abilities / strength of various sword designs, and or blades formed by differing forging techniques / type of steel (carbon content) used ?
It would be very interesting to see direct comparisions between the various ethnographic swords that originate from around the world.......

BSMStar · 14th August 2006, 09:02 PM

Quote:

Originally Posted by The Double D

We did not however fire a 30 cal machine gun at the blades.

Take a look at the difference in kinetics between a 9mm and a 30 cal... and I can not help but feel that due to the spin from rifling, that it greatly added to the punch (and fatigue) on the blade (when examining how the blade failed, spinning on its anterior axis).

Rivkin · 23rd August 2006, 03:30 PM

When WWII started light armored vehicles had 5mm, tanks 25mm; in the end tanks had as much as 100mm front armor. I was probably too vile in my responce, but there are many things one might consider in evaluating this test, first being the type of ammunition used. Plain bullets, tracers, incendiaries are made from very soft materials. Then there is armour piercing, which is typically made from hard (60-65) steel, sabot or advanced armour piercers where one can find smaller "penetrators", made from tungsen or other exotic materials. I am no specialist in the area, far from that, but standard bullets are really not supposed to be shot at steel targets.

BSMStar · 24th August 2006, 01:47 PM

Rivkin,

I didn't take it as being vile.

I agree, there are too many unknowns in this video (at least for me since I do not understand Japanese) to be scientific. If you look up above (19 entries), there is a poor picture of the cartridges as they are being fed in (from the video)… they appear to be the silver tipped armor piercing type.

Obviously, I am not an expert, just a student like most of us here on the forum.

Here is some interesting info on the 50...

http://www.democrats.reform.house.go...3637-24584.pdf

14th August 2006, 05:45 PM	#1
BSMStar Member Join Date: Jan 2005 Location: Kansas City, MO USA Posts: 312	Destructive Sword Test.... Machine Gun vs. Katana This is a must see! Watch to the conclusion... count how many 30 cal. round does it take to cut their way through a well made Katana. Do not do this at home! I cry for the sword in the end... but it is amazing the punishment it takes before giving up the ghost (seven rounds). http://www.youtube.com/watch?v=zBIBfzL8ULw Thank you LabanTayo for guiding me to this link!!!! Last edited by BSMStar; 14th August 2006 at 06:02 PM.

14th August 2006, 06:17 PM	#2
katana Member Join Date: Jan 2006 Location: Kent Posts: 2,653	There is also this one......9mm against a Katana (the sword.......NOT ME ) http://www.youtube.com/watch?v=pNiX_l-HEGM&NR

14th August 2006, 07:32 PM	#4
katana Member Join Date: Jan 2006 Location: Kent Posts: 2,653	Its surprising how much punishment the katana's took. And as for a 9mm bullet being sliced in half ......seeing is believing. I did a quick check on the velocity of an average 9 mm bullet... The 9mm (which is offered in a much wider range of bullet weights and styles) is specced at 1150 fps and 340 ft-lbs energy with a 115-grain JHP bullet and 990 fps and 320 ft-lbs energy with heavier 147-grain JHP subsonic loads. fps (feet per second)..... and I believe that ft-lbs converts into the weight in lbs spread on a square foot area.....340 ft-lbs ....that is some force

14th August 2006, 07:52 PM	#5
The Double D Member Join Date: Jun 2006 Location: On the banks of Cut Bank Creek, Montana Posts: 189	Back in the days when I taught firearms to new police recruits all of use instructors would split bullets and break balloons. We used an axe blade and an old mauser bayonet. My particular favorite was turn the gun upside down and fire the gun with my little finger. The drill was to teach that all that was required to hit the target was proper sight alignment. We fired 9mm ball, 38 Spl WC and JHP, 357 Magnum JHP and 45 ACP ball. The axe and bayonet blade had been used for years before I arrived and was still there being used after I left a year or two later. No damage to the blades. We did not however fire a 30 cal machine gun at the blades.

14th August 2006, 08:38 PM	#6
katana Member Join Date: Jan 2006 Location: Kent Posts: 2,653	Hi DD......guns are not my forte....never even fired live rounds... Anyway....back to the thread.....Is there any data on the effective cutting abilities / strength of various sword designs, and or blades formed by differing forging techniques / type of steel (carbon content) used ? It would be very interesting to see direct comparisions between the various ethnographic swords that originate from around the world.......

23rd August 2006, 03:30 PM	#8
Rivkin Member Join Date: Dec 2004 Posts: 655	When WWII started light armored vehicles had 5mm, tanks 25mm; in the end tanks had as much as 100mm front armor. I was probably too vile in my responce, but there are many things one might consider in evaluating this test, first being the type of ammunition used. Plain bullets, tracers, incendiaries are made from very soft materials. Then there is armour piercing, which is typically made from hard (60-65) steel, sabot or advanced armour piercers where one can find smaller "penetrators", made from tungsen or other exotic materials. I am no specialist in the area, far from that, but standard bullets are really not supposed to be shot at steel targets.

24th August 2006, 01:47 PM	#9
BSMStar Member Join Date: Jan 2005 Location: Kansas City, MO USA Posts: 312	Rivkin, I didn't take it as being vile. I agree, there are too many unknowns in this video (at least for me since I do not understand Japanese) to be scientific. If you look up above (19 entries), there is a poor picture of the cartridges as they are being fed in (from the video)… they appear to be the silver tipped armor piercing type. Obviously, I am not an expert, just a student like most of us here on the forum. Here is some interesting info on the 50... http://www.democrats.reform.house.go...3637-24584.pdf