Overview. The M67 grenade has a spheroidal steel body that contains 6.5 oz (180 g) of composition B explosive. It uses the M213 pyrotechnic delay fuze.
L109 HE (high-explosive) fragmentation grenade
Used in defence operations and can be used effectively in offensive operations if the user is well trained.
However, 1 stick of dynamite contains more explosives than an M67 grenade, which contains less than half a pound of explosives. As a result, the blast wave from 7 sticks of dynamite will be significantly more powerful and carry on for a greater distance than one from an M67.
The casualty radius of a grenade is between 5 and 20 meters; with a minimum of 50% of exposed personnel becoming casualties within a radius of around 15 metres from the blast. A single grenade can kill an individual up to 10 metres away and can cause serious injuries up to 20 metres away.
The 300 g grenade had the greatest throwing distance (38.6+/-6.5 m) and had the greatest accuracy (6.9+/-3.9 m). Grenade shape was also a significant influence based on both the subjective and objective criteria; with the ball shape being the best.
The M67 Grenade is a fragmentation grenade used by the United States military and Canadian forces, almost half a pound of high explosive with a fatal blast radius of 5 yards.
Semtex is a general-purpose plastic explosive containing RDX and PETN. It is used in commercial blasting, demolition, and in certain military applications.
Most grenades will detonate about 3-5 seconds after the trigger is released, giving you a few critical moments to react. The kill radius from a grenade's explosion is about 15 feet, and the casualty radius is about 50 feet, though pieces of shrapnel can still fly much farther than that.
Modern fragmentation grenades, such as the United States M67 grenade, have a wounding radius of 15 m (49 ft) – half that of older style grenades, which can still be encountered – and can be thrown about 40 m (130 ft). Fragments may travel more than 200 m (660 ft).
It requires immeasurable bravery and selflessness to carry out an act for which death is all but guaranteed, but in several instances throughout history, exemplary service members have dived on grenades and survived the explosion.
For safety reasons, attempting to reinsert a grenade's safety pin is discouraged by the U.S. military. Instructors also carefully educate recruits not to “milk” a grenade after removing the safety pin.
Inert grenades are a safe training tool because they are hollowed out and do not explode. They mimic a live grenade's explosion by producing a small audible pop from a timed fuse.
Grenades were first used against armored vehicles during World War I, but it wasn't until World War II when more effective shaped charge anti-tank grenades were produced. AT grenades are unable to penetrate the armor of modern tanks, but may still damage lighter vehicles.
The Thermite Incendiary Grenade is used primarily to provide a source of intense heat to destroy equipment or for general destruction or sabotage. The flare burns from the base producing intensive heat sufficient to burn through 1.5 to 2mm steel plate.
But legend has it that the first grenade was a small box of live vipers (snakes) which ancient warriors threw into the enemy's camp. The first recorded use of the word “grenade” came in 1536, from the siege of Arles in southern France by French forces under King Francis I.
Thus, in conclusion, it's hard to make a grenade explode just by shooting a normal handgun at it, but with a powerful enough sniper rifle, it's possible to penetrate deep enough into the main charge and make a grenade explode with a single, well-placed shot!
Grenades generally explode on the ground, creating a mushroom like blast that we usually see in movies. In space, it would become nearly a spherical blast, but the format will vary significantly with the grenade shape.
The grenade is thrown and explodes after a roughly 1.5-second delay. The explosion of magnesium-based pyrotechnic chemicals causes a very bright flash and a loud sound (160−180 decibels), which can cause temporary blindness, temporary loss of hearing and loss of balance, as well as a sense of panic.
Hand grenades are regulated under the National Firearms Act ("NFA"), a federal law first passed in 1934 and amended by the Crime Control Act of 1968. The 1968 amendments made it illegal to possess "destructive devices," which includes grenades. (26 U.S.C. § 5801.)
Water doesn't behave that way, though; in fact, it's nearly (but not completely) incompressible. In other words, the water won't absorb the pressure from the explosion—it'll move with it, until it hits an air pocket or two that it ??? compress.
“Hooah, Sarge.”
A good rule of thumb is only cook it for 2-3 seconds because sometimes nades will have shorter fuses than others. We have all seen the kamikazes who run into a room known to have opfor in it with a nade in their hand.
The M67 is typically known as a "baseball" grenade, because it is shaped like a ball that can be easily thrown. According to the FY2021 US Army Justification, the average cost of a single M67 grenade is around 45 US dollars.
But to sum up on the matter of cooking grenades, soldiers can and do, though rarely, “cook” grenades to minimise the time an enemy has to react to them, although doing so isn't advised and requires, to quote a book literally titled Grenades, “great confidence in the manufacturer's quality control”.
The Superior® Professional Smoke Grenade (Electric Fire) is engineered for use where a huge volume of smoke is rapidly required, with remote initiation.