40mm low velocity extended range grenades

#1
International debut of ST Kinetics' 40MM Low Velocity Extended Range Ammunition at Eurosatory 2010 | Shephard Group

June 14, 2010

ST Kinetics, the land systems arm of ST Engineering, introduces the all new 40mm Low Velocity Extended Range (LVER) ammunition at Eurosatory 2010.

The 40mm LVER round is the latest addition to ST Kinetics' 40mm munitions family, and is designed specifically for the urban battlefield. Compared with a conventional low velocity round, the LVER ammunition has a 30% shorter time of flight, a flatter trajectory and covers a longer range. This greatly enhances the accuracy and range of each shot.

The LVER round can be fired from any conventional 40mm low velocity grenade launchers, including the CIS 40GL and M203, and can thus be easily and quickly introduced into service. Four types of LVER ammunition are currently being produced, namely the High Explosives, High Explosives Dual Purpose, Target Practice Marker and Flash & Bang rounds.

"We are pleased to introduce the LVER ammunition as the latest addition to our 40mm munitions family. The LVER round is a highly effective solution for urban close-quarter combat with its improved accuracy and shorter time of flight. As the 40mm munitions global market leader, ST Kinetics continues to innovate to deliver enhanced warfighter's effectiveness at the soldier level."
SEW Chee Jhuen
President, ST Kinetics

ST Kinetics is a leading provider of Total 40mm Solutions, offering a comprehensive range of 40mm grenade launcher weapon systems, and a family of high velocity and low velocity 40mm ammunitions that include high explosive, enhanced blast, self-destruct, air bursting, surveillance, insensitive and less-than-lethal rounds. ST Kinetics is committed to maintaining its 40mm market leadership by growing market shares through product quality and innovation, and broadening the customer base.


ST Kinetics' 40mm LVER round and full range of 40mm solutions are on display at Eurosatory 2010 (Paris-Nord Villepinte Exhibition Centre) from 14 to 18 June 2010, Hall 6 Stand M320.

Source: ST Kinetics
Does anyone know how this works? Usually for munitions without rocket-assisted boost, extended range is synonymous with high velocity.

To extend the range of unpowered flight the number of parameters to play with are small: inertia/momentum, reduced drag or aerodynamic lift.
 
#2
International debut of ST Kinetics' 40MM Low Velocity Extended Range Ammunition at Eurosatory 2010 | Shephard Group



Does anyone know how this works? Usually for munitions without rocket-assisted boost, extended range is synonymous with high velocity.

To extend the range of unpowered flight the number of parameters to play with are small: inertia/momentum, reduced drag or aerodynamic lift.
I suspect this may be an issue of semantics but your assertion that extended range is 'synonynous with high velocity' is slightly off mark. Extended range can be simply as a result of the achievement of a 'higher' velocity than was previously achieved. In such circumstances the 'higher' velocity gives extended range but could still be classed as 'low velocity'.
 
R

really?_fascinating

Guest
#3
I suspect the 30% shorter time of flight should give us a clue that the round is moving 30% faster. So as Sangreal said faster, but still, in relative terms, low velocity.
 
#4
Such grenades are sometimes referred to as "Medium Velocity" to differentiate from the 400m "low velocity" and the 2000m "High Velocity" 40mm grenades. Even the "high velocity" grenades only have a muzzle velocity of 240m/s - distinctly subsonic and slower than some airguns.

The last two paragraphs here:
NEW DEVELOPMENTS IN GRENADE AMMUNITION
are probably quite interesting.
 
#5
Alright thanks guys. I'm guessing it probably works using a strengthened casing and a more powerful/larger quantity of propellant, than any kind of rocket-boost system to build up additional speed.
 

BrunoNoMedals

LE
Kit Reviewer
#7
I wouldn't trust anything produced by ST Engineering. I've seen a bid they placed for a database/repository system that was basically just Windows Explorer written in sexed-up language. And it was written in the most comedy pidgen-english you'll ever see on paper.

That said, they do now own Antycip - who are pretty sharp.
 
#8
Thanks. Does anyone have any details on how the Russian GP-25 works + sectional drawings of their grenades? :)

It sounds like the low pressure bit of the grenade falls away from the business end once it leaves the barrel, like a sabot, but I'd like to double check.

Shortly after the Vietnam War ended, the Soviet Union introduced a 40-mm grenade launcher that used the High-Low Principle, but with a twist on the original design. The GP-25 40-mm grenade launcher fits under the assault rifle and fires a caseless projectile that is muzzled loaded. Instead of having a case, the high-pressure chamber is located on the rear of the projectile with ten vent holes, in which the launcher barrel acts as the high-pressure chamber. The ignition of the propellant gases also causes the drive band to engage the launcher grooves, similar to the American Civil War Parrot muzzle loading rifled cannon.
 

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