Hmmm maybe this explains a lot.
"With little fanfare, Ukraine has developed and used a guided artillery rocket in combat with a longer range and heavier warhead than the vaunted
Guided Multiple Launch Rocket Systems (GMLRS) munitions provided by the U.S. and allies.
Called the Vilkha-M, it is a modified 7.6m (25-foot
) long Soviet
BM-30 Smerch multiple launch rocket system (MLRS) artillery rocket.
The Vilkha-M has a range of 110km (68 miles) and a 300mm, 485-pound warhead that can hit targets with great accuracy, Ivan Vinnyk, first deputy head of the National Association of Ukrainian Defense Industries, told
The War Zone Tuesday.
By comparison,
the GMLRS munitions - fired by the M142 High Mobility Artillery Rocket Systems,
or HIMARS and the
M270 Multiple Launch Rocket System (MLRS) provided to Ukraine - have a range of up to about 80km (about 50 miles) and a 227mm, 200-pound warhead.
Their precision, he said, is boosted by so-called “gas rudders” - scores of small holes emitting propellant - used to direct the missile on the target via GPS. While the Vilkha-M is said to be quite accurate and a precision munition, just how accurate isn't disclosed at this time.
And there are plans underway, said Vinnyk, to modify the Vilkha-M to boost the range to 150km (about 93 miles).
Though produced in small numbers, the Vilkha-M can reach targets 68-miles away with a much larger warhead than the M31s fired by HIMARS.
www.thedrive.com