2S4 Tyulpan and 2S7 Pion

... and is more accurate.

They need to increase the number of guided shells. And suicide drones.

Using a full salvo of conventional rounds of howitzer or mrls is still expensive.

A suicide drone can hunt enemy artillery and hit it precisely like they already showed with the US supplied guns and KUB drone this week. Drones have also the range for hunting them and they can find them when on the move before it can fire and not wait for the radar to detect incoming rounds and geolocate enemy position.

Guided rounds destroy enemy position with just one hit.

14:07 10/12/2022 (updated: 14:10 10/12/2022)


The Russian military received a batch of the most powerful guns in the world ahead of schedule





MOSCOW, October 12 - RIA Novosti. "Uraltransmash" ahead of schedule shipped to the Ministry of Defense of the Russian Federation a batch of high-powered 2S7M "Malka" cannons that have undergone modernization, the press service of the Uralvagonzavod concern told reporters on Wednesday.
“As part of the state defense order for 2022, Uraltransmash (part of Uralvagonzavod, part of Rostec) delivered a batch of 2S7M Malka self-propelled guns to the Russian Defense Ministry ahead of schedule after a major overhaul with modernization,” the press service said.

According to the general director of Uraltransmash, Dimtriy Semizorov, whose words are quoted by the press service, gearboxes, distribution mechanisms and power supply units have been replaced in the guns, observation devices, intercom equipment and a radio station have been updated.
“The modernization has improved all the main characteristics, including maneuverability, mobility, command controllability. The 2S7M Malka self-propelled guns have successfully passed the full cycle of tests before being sent to the customer,” he added.

https://ria.ru/20221012/malka-1823369439.html

I will only add, that there are some 250 (!) pcs of 2S7 in storage left, after some 70 (! !) was reported gone for modernization in March or April

Even with old shells being able to hit targets at 50km with 110kg HE 203mm shells is pretty devastating, and 20km with 130kg 240mm bombs from the Tulip is pretty devastating too... the mortar offers near vertically falling bombs which creates a more even pattern of shell fragments around the point of impact...

Makes you wonder if they will do to the 203mm what they are doing with the 152mm land based guns, sharing funding with the Navy to develop very long range guided shells as standard... I would think anything they design for the 152mm shells could be fitted to 203mm shells just as easily, and the larger calibre offers more internal space for more exotic ideas and projectiles with better payloads.

Saboted 152 mm shells can probably manage 100 km easy out of the 203 mm gun. And it will shoot full warhead weight shells, not the firecrackers they use for 152/155 mm extended range "shells".