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Quick explosives question.:

Can one ignite a grenade by shooting it?

Related question, does it matter if the projectile is going fast enough to turn the air around it to plasma?

Shadowed Philosopher
I don't believe a grenade will actually detonate on being shot at. It wouldn't do anything good, though.

And I don't get the second question. What do you mean?
Shinigan (Naruto fanfic)
For the second, I'm using a miniature railgun(powered by phlebotinum), and I've read that a sufficiently fast object will ignite the air around it.

 4 Heavy DDR, Fri, 23rd Mar '12 2:24:30 PM from Central Texas
What's Gravity Falls.
Depending on the grenade, unless you manage to shoot the pin clean off, or shoot in a very precise space that would trigger it, no. However, I do believe most people wouldn't think twice about it if you did it once, or if your grenades simply work differently.
I'm pretty sure the concept of Law having limits was a translation error. -Wanderlustwarrior
 5 Mukora, Fri, 23rd Mar '12 2:27:07 PM from a place Relationship Status: Love is an open door
Uniocular
Adding onto the OP's question, what if the pin is already off?
 6 Heavy DDR, Fri, 23rd Mar '12 2:34:21 PM from Central Texas
What's Gravity Falls.
[up] I have limited grenade knowledge, but that would do little to change the amount of time it would take for the grenade to explode. Depending on the grenade (I'm going off from what I recall Mythbusters using at one point), when you pull the pin, you're allowing chemicals to creep their way through the grenade that will meet and cause the explosion. Grenades are really hard, so shooting them wouldn't do anything, unless you really managed to break through the grenade with some kind of super bullet in the right place so that the chemicals would ignite each other right away.

Again, limited knowledge, someone probably has a much better answer than I do.
I'm pretty sure the concept of Law having limits was a translation error. -Wanderlustwarrior
Shadowed Philosopher
A railgun projectile that's moving fast enough to plasmafy the air around it would probably create a sufficiently large explosion just by its impact that you could mistake it for the grenade going off. tongue
Shinigan (Naruto fanfic)
 8 Major Tom, Fri, 23rd Mar '12 2:46:58 PM Relationship Status: Barbecuing
Eye'm the cutest!
HEIAP ammunition for standard firearms can set off some (usually older) grenades.
"Allah may guide their bullets, but Jesus helps those who aim down the sights."
 9 Last Hussar, Fri, 23rd Mar '12 3:36:19 PM from the place is here.
The time is now,
The pin of a grenade keeps the handle in place. Once the handle is released it will spring off of the contact, starting the fuse - which are usually 3 or 7 second. You can remove the pin, and as long as the handle is held down, the grenade will not go off. Thus you can set a booby trap by placing the grenade so that something is holding down the handle, for instance a dead body, then remove the pin. When the body is moved off the grenade the handle comes off and the grenade is primed, so the soldier is killed by moving his comrade.

I also heard of an instance that relied on the fact certain electrical tapes are dissolved by petrol (gasoline). Tape handle, remove pin, drop in fuel tank. This gives you long enough to get away before the earth shattering kaboom.

The casing of a grenade is steel, designed to fragment when the charge goes off. There is no Hollywood explosion, picking men up and tossing them in the air. Anything strong enough to pierce the grenade is probably as powerful as the grenade.

Of course shoot a man who has just pulled the pin from a grenade, and he will almost certainly drop the grenade, taking pressure off the handle...

edited 23rd Mar '12 3:36:47 PM by LastHussar

Do the job in front of you.
See ALL the stars!
If the projectile is travelling fast enough to ignite/ionize the air around it, the shock wave resulting from the expanding air is going to be pretty devastating on its own, grenade or no.
Da Rules excuse all the inaccuracy in the world. Listen to them, not me.
 11 Last Hussar, Fri, 23rd Mar '12 4:01:26 PM from the place is here.
The time is now,
Plus you have all sorts of other problems related to air pressure and temperature caused by friction and their effect on the projectile.
Do the job in front of you.
 12 Bobby G, Fri, 23rd Mar '12 4:06:37 PM from the Silvery Tay
vigilantly taxonomish
Doesn't it also depend on the type of grenade? Are we assuming a hand grenade with a timed fuse and safety pin here?
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Total posts: 12
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